Question

Which of the following statements is true?
Heat produced in a current carrying conductor depends upon:

• A. The time for which the current flows in the conductor
• B. The resistance of the conductor
• C. The strength of the current
• D. The nature of current (ac or dc)

Answer 1

Answer: (A), (B), (C)

The correct options are
A The time for which the current flows in the conductor
B The resistance of the conductor
C The strength of the current

Power loss = $I_{rms}^{2}R$
Total heat produced = $I_{rms}^{2}Rt$
Therefore, heat produced depends on the resistance, time duration and rms value of current ( both ac and dc current have rms values )