Power dissipated in a resistor can be expressed as P = I²R. If the current doubles while resistance stays constant, the power:
Q1. Power dissipated in a resistor can be expressed as P = I²R. If the current doubles while resistance stays constant, the power:
Answer: Quadruples
Explanation: Since P = I²R, power is proportional to the square of the current; if the current doubles (2I), the new power is (2I)²R = 4I²R, which is four times the original power. This quadratic relationship means small increases in current produce large increases in heat dissipation.