Q. An electric fan and a heater are marked as $100\ watt,\ 220\ volt\ $and $1000\ watt,\ 220\ volt$ respectively. The resistance of the heater is
A) Zero
B) Greater than that of the fan
C) Less than that of the fan
D) Equal to that of the fan
Explanation
(c) For constant voltage, we know that $P \propto \frac{1}{R}$
So higher the power, lower will be the resistance
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.