If the current through a resistor is increased by a factor of 4,how does this affect the power dissipated?
A)It decreases by a factor of 4.
B)It increases by a factor of 4.
C)It decreases by a factor of 8.
D)It increases by a factor of 16.

Question

Quizplus · Accepted Answer

According to the formula for power dissipation in a resistor, P=I^2R. As the current is increased by a factor of 4, the power dissipation will increase by a factor of (4^2) = 16. Therefore, the correct choice is D - It increases by a factor of 16.

If the Current Through a Resistor Is Increased by a Factor