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Why Ohms law is not applicable at very low temperature?
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Why Ohm's 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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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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Why KVL and KCL are not applicable at high frequency?

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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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Why power factor of the transformer under no load is very low?

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Is Ohm's law applicable to metallic conductors?
Answer : Yes, Ohm's law is generally applicable to metallic conductors under certain conditions. Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across ... under normal conditions**, but at very high temperatures or voltages, deviations can occur....

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Why is electricity generated at low voltage?
Answer : Electricity is often generated at low voltage for a couple of important reasons: 1. **Efficiency of Generation**: Generating electricity at lower voltages is easier and more cost-effective at ... voltage for simplicity and safety, but then stepped up to higher voltage for efficient transmission....

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Why is electricity transferred by the national grid at A high PD but low current?

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Why do semiconductors behave as conductors at room temperature Class 12?
Answer : Semiconductors behave as conductors at room temperature because of thermal energy. Here's why: 1. **Energy Band Theory**: Semiconductors have a **small energy gap (band gap)** between ... semiconductors have **enough free charge carriers** to conduct electricity, but not as efficiently as metals....

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Why is the superposition theorem not applicable for nonlinear circuits?

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Why superposition theorem is not applicable for a circuit containing non linear elements?

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Why superposition theorem is not applicable for power measurement?

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Why is the superposition theorem not applicable for power?

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Why is superposition theorem not applicable to directly calculate the power in linear circuits?

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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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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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