Magnetic fields (A-level only)

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Question 36
Medium

Power P P\,P is dissipated in a resistor of resistance R R\,R carrying a direct current III.

A second resistor of resistance 3R 3R\,3R carries an alternating current with peak value 2I2I2I.

What is the average power dissipated in the second resistor?

1.5P1.5P1.5P

3P3P3P

6P6P6P

12P12P12P

Magnetic fields (A-level only) Questions

  1. A Level
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