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Calculate the potential when a conductor of length 2m is having an electric field of 12.3units.

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Calculate the potential when a conductor of length 2m is having an electric field of 12.3units.

(a) 26.4

(b) 42.6

(c) 64.2

(d) 24.6

This question was addressed to me during an online interview.

The origin of the question is Continuity Equation topic in section Electric Fields in Material Space of Electromagnetic Theory

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The correct option is (d) 24.6

Easy explanation: The electric field is given by E = V/L. To get V, put E = 12.3 and L = 2.Thus we get V = E x L = 12.3 x 2 = 24.6 units.

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