Question

SAQ : State Ohms law. Explain it and define resistance from it

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Answer

Ohm’s law: At constant temperature and other physical conditions, the current flowing through a conductor is directly proportional to the potential difference across the ends of the conductor.

I  ∝ V

or,      V=IR

Resistance: The resistance of a conductor is the ratio of the potential difference across the ends of the conductor to the current flowing through it.

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