Question

The two points of a wire are kept at potentials of 10V and 40V. If the resistance of wires is 30 Ω. Then find the current through the wire.

Answer 1

Answer: 1 A

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Explanation:

here, potential difference (V) = 40 - 10 = 30 V

resistance (R) = 30 Ω

then,

Current (I) = V/R

             = 30/30

            = 1 A