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1 hours ago Electronics.stackexchange.com Show details ^{}

1 Answer1. Yes. All materials under normal conditions and at fixed temperature follow* **ohm**'s **law**, though it becomes less useful in good insulators where breakdown occurs before any substantial amount of current can flow. Non-ohmic effects occur at boundaries between different materials, such as pn junctions, schottky junctions, thermocouples

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**Posted in**: Law Commons

Just Now Quora.com Show details ^{}

Answer (1 of 10): Yes and no. It depends on which region is your device operating in, which depends on** the** bias and also** the device** itself. It ultimately depends on** the** relationship between** the** carrier velocity with** the** applied electric field. For …

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**Posted in**: Law Commons

7 hours ago Experts123.com Show details ^{}

**Ohm’s law** has its theoretical basis in classical physics( Maxwell-Boltzman distribution). But it has its own limitations. After the development of quantum mechanics, it has been found that, electorns obey Fermi-Dirac distribution **law**. Which has been applied to **semiconductor** theories.

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7 hours ago Toppr.com Show details ^{}

Find the true statement. Define **Ohm**'s **Law**. Also write its limitations. The graph represents a current-voltage behaviour of a water-voltmeter. Spot the correct explanation : The current I and voltage V graph for a given metallic wire at to different temperatures T 1 and T 2 are shown in the figure. It is concluded that.

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1 hours ago Answers.com Show details ^{}

Actually, **Ohm**'s **law** is applicable to **semiconductor** devices.The issue is one of perspective. The **semiconductor** device does not have a purely resistive response curve, so it would seem that **Ohm**'s

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**Posted in**: Law Commons

9 hours ago Reddit.com Show details ^{}

**024.549.477****Ohm**'s **law** is a linear approximation for systems where R is not a function of voltage. One simple case where V=IR is not **valid** is a diode. In the case of an ideal diode, R=0 for V>0, but R=inf for V<0. Here's a graph of current vs voltage for an actual diode source. For most cases of conductors/insulators, the linear approximation is very good

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**Posted in**: Law Commons

9 hours ago Ohmlaw.com Show details ^{}

**Ohm’s law**: The current flowing through any resistor is directly proportional to the voltage applied to its ends. Mathematically **Ohm’s Law** is given by V = IR. Where. V = Voltage, I = Current, R = Resistance. **Ohm’s Law** is widely used in Electrical Engineering for solving circuits.

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5 hours ago Physics.stackexchange.com Show details ^{}

**Ohm**'s **Law** does not have a problem here any more than any other formula in the sciences which involves dividing by a denominator which can go to zero. **Ohm**'s **Law** exhibits a singularity when there is no resistance, but a nonzero voltage.

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**Posted in**: Form Law

9 hours ago Physicsforums.com Show details ^{}

Ohmic materials obey **Ohm**'s **Law**. Non-ohmic materials do not. Of course, really, for high enough values of V and/or I, pretty much everything becomes non-ohmic eventually. So **Ohm**'s **Law** is an approximation that holds in certain regions of …

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1 hours ago Mechanicaltutorial.com Show details ^{}

The condition for the validity of **Ohm**'s **law** is that the. A. Temperature should remain constant. B. Current should be proportional to voltage. C. Resistance must be wire wound type. D. All of the above. View Answer. A. Temperature should remain constant. Your Comments.

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5 hours ago Byjus.com Show details ^{}

**Ohm’s Law** Solved Problems. Example 1: If the resistance of an electric iron is 50 Ω and a current of 3.2 A flows through the resistance. Find the voltage between two points. If we are asked to calculate the value of voltage with the value of current and resistance given to us, then cover V in the triangle.

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**Posted in**: Form Law

4 hours ago Answers.com Show details ^{}

Very few conductors or electronic components actually obey **Ohm**'s **Law**, because **Ohm**'s **Law** is not a universal **law** -i.e. one that applies in all circumstances. For **Ohm**'s **Law** to apply, the ratio of

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**Posted in**: Law Commons

4 hours ago Physics-and-radio-electronics.com Show details ^{}

The **ohm’s law** was named after the German physicist Georg **Ohm** who discovered this rule or **law**. **Ohm’s law** statement **Ohm’s law** states that the electric current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance.

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**Posted in**: Law Commons

3 hours ago Quora.com Show details ^{}

Answer (1 of 2): This describes the fundamental relationship between current (flow** of** electrons i.e.), the voltage (the force that pushes the electrons to move) and the resistance the property** of** material that will always resist any movement** of** electrons within it. …

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**Posted in**: Property Law

9 hours ago Ohmslawcalculator.com Show details ^{}

Simple to use **Ohm**'s **Law** Calculator. Calculate Power, Current, Voltage or Resistance. Just enter 2 known values and the calculator will solve for the others.

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**Posted in**: Law Commons

6 hours ago Sciencedirect.com Show details ^{}

Deviations from **Ohm**'s **law** in **semiconductors** (Received 20 March 1968) SINCE Ryder and Shockley's pioneering work [l-3] on deviations from **Ohm**'s **law** and the saturation of the current density, many investigations have been devoted to this subject. But still some data are inconsistent and there are discrepancies between experi- ment and theory.

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1 hours ago Mycbseguide.com Show details ^{}

**semiconductors** obey **Ohm**'s **law** at only **low** field why. This happens because at **low** temperature, the "p" and "n" type **semiconductor** resist the flow of electrons through them and then act as resistances, but when the temperature is increased the flow of electrons is Hindered.

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7 hours ago Studysite.org Show details ^{}

⇒ **Ohm**'s **law** is not applicable to vacuum tubes carbon resistors high voltage circuits circuits with **low** current densities ⇒ When there is an electric current through a conducting wire along its length, then an electric field must exist. Outside the wire but normal to it Outside the wire but parallel to it Inside the wire but parallel to it

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**Posted in**: Study Law

5 hours ago Physicsforums.com Show details ^{}

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**Posted in**: Law Commons

8 hours ago Khanacademy.org Show details ^{}

let's explore how we can practically verify whether any material obeys **Ohm**'s **law** now before we do that let's quickly recall what **Ohm**'s **law** is almost all says that if you take any material like let's say windings of a wire and if we apply a potential difference across the ends of that so let's say the potential difference across the ends of this wire is V and because of this a current starts

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**Posted in**: Law Commons

1 hours ago En.wikipedia.org Show details ^{}

**Ohm**'s **law** states that the current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship: =, where I is the current through the conductor in units of amperes, V is the voltage measured across the …

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**Posted in**: Law Commons

3 hours ago Edaboard.com Show details ^{}

limitation of **ohms law** Well, I think, **ohm law** states no where the state of matter it is applicable to. I mean when you say resisivity or resistance , in no way you are saying that it must be solid in nature. ofcourse **Ohm**'s **law** should be **valid** for liquids as well as for gases. for a given configration of a liquid on gas container the current will increase as you increase the …

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**Posted in**: Law Commons

9 hours ago Sciencebydegrees.com Show details ^{}

The first misconception, then, from thinking **Ohm’s Law** and \(V=IR\) are the same, is: “when **Ohm’s Law** doesn’t apply, then \(V=IR\) doesn’t apply either.” You would then think you can’t use \(V=IR\) for a light bulb, for example. It is true that **Ohm’s Law** doesn’t apply in the case of a light bulb. But \(V=IR\) does. A light

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**Posted in**: Law Commons

3 hours ago Youtube.com Show details ^{}

Verification of **ohm**'s **law** ,but **ohm**'s **law** is applicable on resistance not

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5 hours ago Physics.stackexchange.com Show details ^{}

**Ohm**'s **law** cannot be applied for non-ohmic resistances ( inductors, capacitors, solid-state devices). **Ohm**'s **law** just says that current depends on the voltage of the EMF source and the ohmic resistance of the circuit. It states that there is a voltage drop, between 2 ends of a resistor. Share. Improve this answer.

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**Posted in**: Law Commons

3 hours ago Electro-tech-online.com Show details ^{}

**Ohm**'s **law** in fact all of **Ohm**'s experiments used a fixed R value at a stable temperature. The fact that **Ohm**'s **law** has become the ratio we use to describe all this stuff is what I'm commenting on. As MrAl said, the ratio is not **Ohm**'s **law**. It's just what was derived from his experiments.

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**Posted in**: Law Commons

4 hours ago Differencebetween.net Show details ^{}

Difference Between Ohmic and Non-Ohmic Conductors Ohmic vs Non-Ohmic Conductors **Ohm’s law**, discovered and named after Georg **Ohm**, states the relationship between voltage, current and resistance of a conductor. This is important in designing electrical and electronic circuits in order ensure that the voltages and currents in the components stay within specs.

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**Posted in**: Law Commons

6 hours ago Askiitians.com Show details ^{}

Limitations of **Ohm’s Law**. Although **Ohm’s law** is an important principle in the field of electronics, it cannot be considered as an actual physical **law**. We know that as per **ohm’s law** voltage / current = a constant and that constant is the resistance. But the resistance does not remain constant all the time.

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1 hours ago Calculator.net Show details ^{}

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1 hours ago Toppr.com Show details ^{}

(b) **Is Ohms law** universally applicable for all conducting elements?If not, give examples of elements which do not obey **Ohms law**. (c) A **low** voltage supply from which one needs high currents must have very **low** internal resistance.

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**Posted in**: Law Commons

3 hours ago Socratic.org Show details ^{}

What are limitations of **ohms law**? **Ohm**'s **law** states that if the physical properties of a conductor remains unaltered,the current flowing through it is directly proportional to the voltage difference. So,clearly on increasing the temperature (temperature is a physical property) **Ohm**'s **law** will not be **valid**.

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**Posted in**: Property Law

8 hours ago Theengineeringprojects.com Show details ^{}

What **is Ohm’s Law**. **Ohm’s law** says that the current passing through any conductor among 2 points is directly proportionate to the voltage across 2 points of the conductor if physical parameters like temperature, pressure, etc of conductor remain same. Its mathematical expression is. V α I.

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**Posted in**: Law Commons

Just Now Electronicproducts.com Show details ^{}

Why there’s an I in **Ohm’s law**: Electronic Products Word of the Week. Posted on August 22, 2014 by Leonard Schiefer. Explaining E = I x R. Every student in physics and electronic engineering learns **Ohm’s law**, E = I x R, or voltage equals current times resistance. You learn that E is electromotive force, a long term for voltage.

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5 hours ago Learnabout-electronics.org Show details ^{}

Notice that **Ohm´s law** states "In metallic conductors" This means that the **law** holds good for most materials that are metal, but not all. Tungsten for example, used for the glowing filaments of light bulbs has a resistance that changes with the temperature of the filament, hence the reference in **Ohm´s Law** to ‘at a constant temperature’.

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**Posted in**: Law Commons

2 hours ago Eeeproject.com Show details ^{}

**Ohm’s Law** in AC Circuit. **Ohm’s law** in AC circuit is same other than a factor impedence which replaces resistance in DC circuit. Impedence is nothing but the AC resistance offered in the flow of current in an AC circuit. Difference in AC & DC Resistance. The impedence (Z) has inductance and capacitance effect as well, along with the resistance.

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**Posted in**: Law Commons

4 hours ago Bartleby.com Show details ^{}

Solution for Explain **Ohm’s law** and show it graphically. Does **Ohm’s law** hold **for semiconductor** and with varying temperature? Give your answer with **valid** reasons.

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3 hours ago Electro-tech-online.com Show details ^{}

V=I*R (**Ohm**'s **Law**) because we dont know what the heck R is ! Thus, saying a diode follows **Ohm**'s **Law** just doesnt do any good at all. If you dont agree, show me one case where knowing **Ohm**'s **Law** helps us calculate something we didnt know before for an element that is non linear (a diode is such a good example).

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**Posted in**: Law Commons

4 hours ago Reddit.com Show details ^{}

**Ohm**'s **law** simply doesn't work for superconductors. **Ohm**'s **law** only works for very specific materials. It's an approximation which works well for, for example, metals. There are many other devices for which it doesn't work; diodes are a good example. More detail if you want: V=IR actually comes from something more fundamental: J = sigma E.

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**Posted in**: Law Commons

7 hours ago Spark.iop.org Show details ^{}

Ohmic materials play only a small part in our lives. Electronic materials such as those based on **semiconductors** play an increasing role and are non-ohmic: they do not obey **Ohm**'s **Law**. **Ohm**'s **Law** assumed a position of great importance in the nineteenth century when telegraph lines were designed and electrical engineering was developing.

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**Posted in**: Law Commons

Just Now Oakton.edu Show details ^{}

The three forms of **Ohm’s law** can be used to define the practical units of current, voltage, and resistance: 1 ampere = 1 volt / 1 **ohm** from the friction between the moving **free** electrons and the atoms obstructing their path. Heat is evidence that power is used in producing current. 3-8: Power Dissipation in Resistance

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**Posted in**: Form Law, Colleges Law

Just Now Allaboutcircuits.com Show details ^{}

PARTS AND MATERIALS. I’m purposely restricting the resistance values between 1 kΩ and 100 kΩ for the sake of obtaining accurate voltage and current readings with your meter. With very **low** resistance values, the internal resistance of the ammeter has a significant impact on measurement accuracy. Very high resistance values can cause problems

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**Posted in**: Law Commons

5 hours ago Digikey.de Show details ^{}

**Ohm’s Law** Calculator. **Ohm’s Law** Calculator. Use this tool to calculate relationships between current, voltage, resistance, and power in resistive circuits. Enter two input values and click calculate to solve for the remaining values. Reset after each calculation for best results. +More.

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**Posted in**: Law Commons

3 hours ago Britannica.com Show details ^{}

**Ohm’s law**, description of the relationship between current, voltage, and resistance.The amount of steady current through a large number of materials is directly proportional to the potential difference, or voltage, across the materials.Thus, if the voltage V (in units of volts) between two ends of a wire made from one of these materials is tripled, the current I (amperes) also triples; …

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4 hours ago Researchgate.net Show details ^{}

The criteria of **low** and high rates of recombination are determined; it is shown that a commonly used expression for the conductivity of a bipolar **semiconductor** is **valid** only at high rates of

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**Posted in**: Sea Law

9 hours ago Openpress.usask.ca Show details ^{}

This result is known as **Ohm’s law**: (5.4.1) where is the voltage measured in volts across the object in question, is the current measured through the object in amps, and is the resistance in units of **ohms**. As stated previously, any device that shows a linear relationship between the voltage and the current is known as an ohmic device.

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**Posted in**: University Law

6 hours ago En.wikipedia.org Show details ^{}

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4 hours ago Resources.pcb.cadence.com Show details ^{}

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6 hours ago Bbc.co.uk Show details ^{}

Use **Ohms law** to relate resistance, current and voltage. In National 5 Physics calculate the resistance for combinations of resistors in series and parallel.

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Ohm’s law doesn’t apply to semiconducting devices because they are nonlinear devices. This means that the ratio of voltage to current doesn’t remain constant for variations in voltage. When does Ohm’s law fail? Ohm’s law fails to explain the behaviour of semiconductors and unilateral devices such as diodes.

Alternative Title: Ohm’s law of electrical resistance. Ohm’s law, description of the relationship between current, voltage, and resistance. The amount of steady current through a large number of materials is directly proportional to the potential difference, or voltage, across the materials.

The three forms of Ohm’s law can be used to define the practical units of current, voltage, and resistance: 1 ampere = 1 volt / 1 ohm ... A linear resistance has a constant value of ohms. Its R does not change with the applied voltage, so V and I are directly proportional.

Ohm’s law is not applicable for unilateral electrical elements like diodes and transistors as they allow the current to flow through in one direction only. For non-linear electrical elements with parameters like capacitance, resistance etc the voltage and current won’t be constant with respect to time making it difficult to use Ohm’s law.