Question

State and explain Ohm's Law. Mention condition under which
Ohm's Law is applicable.
T
Or
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Answer 1

Explanation:

The current is inversely proportional to resistance. ... 1 ohm is the resistance of a conductor such that when a potential difference of 1 volt is applied to its ends a current of 1 ampere flows through it. The necessary condition for Ohm's law to be applicable is that temperature must be constant.

Answer 2

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According to Ohm's law,

Current flowing in a conductor is directly proportional to the potential difference applied across to its ends at constant temperature & physical conditions.

So, According to the definition

V ∝ I

V/I = constant

Put the constant as “r” which indicates the resistance of the conductor.

R = V/I

V = IR

Where

I = current flowing in the conductor

V = potential difference applied across the conductor

R = resistance of the conductor

Unit of Resistance is called omega (Ω)