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Under what conditions is Ohm's law not valid?
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Under what conditions Ohm's law is not obeyed in a conductor Class 12?

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Under what conditions is Ohms law not obeyed?
Answer : Ohm's law states that the current through a conductor is directly proportional to the voltage across it, and inversely proportional to its resistance, i.e., \( I = \frac{V}{R} \), where ... resistance, or other complex effects (like in high-frequency or very high electric fields) come into play....

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What are the conditions for the validity of Ohm's law?

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What are the two conditions when Ohm's law fails?
Answer : Ohm's law, which states that \( V = I \cdot R \) (Voltage = Current Resistance), is valid for most materials under normal conditions. However, there are two main situations where ... are non-linear (like diodes) or when extreme electrical conditions cause the material's resistance to change....

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What are the two conditions for which the principle of superposition is valid?

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Under which conditions is the superposition theorem applicable?

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What are the conditions under which superposition theorem Cannot be applied?
Answer : Superposition Theorem cannot be applied in the following conditions: 1. **Non-linear elements**: Superposition theorem only works with linear circuits. Linear components (like resistors, capacitors, ... - There should be no dependent sources. - You cannot use it directly for power calculations....

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Under what conditions is the superposition theorem applicable?

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How does a voltage regulator maintain a stable output voltage under varying load conditions?

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Why Ohm's law is not applicable for nonlinear circuit?
Answer : Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it, with the proportionality constant being the resistance, i.e., \( V = IR \), where \ ... the voltage and current do not have a fixed, proportional relationship, so Ohm's law doesn't apply....

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Which conductors do not obey Ohms law?
Answer : Not all conductors obey Ohm's Law. Ohm's Law states that the current passing through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance (I = ... , the current and voltage do not have a simple proportional relationship like Ohm's Law suggests....

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Why Ohms law is not applicable at very low temperature?

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Why Ohms law is not applicable at variable temperature?
Answer : Ohm's law, which states that \( V = IR \) (where \( V \) is voltage, \( I \) is current, and \( R \) is resistance), assumes that the resistance \( R \) of a ... variable. Instead, you need to account for how resistance changes with temperature in order to understand the behavior of the material....

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What devices do not follow Ohms law?
Answer : Devices that do not follow Ohm's law are called **non-ohmic devices**. These devices have a **non-linear relationship** between voltage and current, meaning the current does not change ... doesn't apply because their resistance isn't constant-it changes with voltage, current, or temperature....

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In which case Ohm's law is not applicable?
Answer : Ohm's Law, which states that \( V = IR \) (voltage = current resistance), is not applicable in the following cases: 1. **Non-linear materials**: Ohm's Law assumes that the ... cases, the relationship between voltage and current is more complex and cannot be described simply by Ohm's Law....

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