Question

Describe the experiment of Ohm's Law​

Answer 1

Experiment Of Ohm's Law

Ohm's law states that under constant temperature, the current passing through conductor is directly proportional to potential difference applied across it.

Thus,

V= R×I

where

V- potential difference

R- resistance

I- Current

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First the key K is closed and the rheostat Rh is adjusted to get the minimum reading in the ammeter A and voltmeter V. The sliding terminal of rheostat is then moved to increase the current gradually and each time the value of current I flowing in the circuit and the corresponding value of potential difference V across the resistance wire R, are recorded. In this way, different sets of values of V and I are recorded. Then for each set of values of V and I, the ratio V/I is calculated. The ration of V/I gives a constant value which is called resistance of the conductor.

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