Physics Past Questions and Answers

Which of the following factors does not affect the the electric resistance of a wire?

A current of 10A passes through a conductor for 10s, calculate the charge flowing through the conductor

A lamp is rated 240V 60W, calculate the resistance of its filament

The maximum power dissipated by a 100\(\Omega\) resistor in a circuit is 4W. Calculate the voltage across the resistor

One difference between a reactance and a resistance in an alternating current circuit is