A current of 2 A, passing through a conductor produces 40 J of heat in 10 s. The resistance of the conductor is:
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Question

A current of 2 A, passing through a conductor produces 40 J of heat in 10 s. The resistance of the conductor is:

G1 Physics · Accepted Answer

Step 1: Joule heating H = I²Rt. Step 2: R = H/(I²t) = 40/(2²×10) = 1 Ω. Step 3: Printed options/source must be reviewed for current, duration or heat data.