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It is applicable in any situation, regardless of temperature.

Ohm's law is true for all conductors.

For this law to be valid, the temperature must be constant.

They're all incorrect.

answer is C.

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Detailed Solution

The current flowing through a resistance is precisely proportional to the potential difference across its end under constant temperature, according to Ohm's law.

V = RI

Here V = Potential energy, R = Resistance, I = current flowing
Ohmic resistance is defined as resistance that follows Ohm's law.

Ohm's law does not apply to all resistances.

Because ohm's rule only applies at steady temperatures. When the temperature of the conductor is changed, the resistance of the conductor changes, and the connection between current and potential difference changes.

It applies exclusively to ohmic resistance

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