Q. Two identical heaters rated $220\ volt,\ 1000\ watt$ are placed in series with each other across $220\ volt$ lines. If resistance does not change with temperature, then the combined power is
A) $1000\ watt$
B) $2000\ watt$
C) $500\ watt$
D) $4000\ watt$
Explanation
(c) Power of the combination $P_{s} = \frac{P}{n} = \frac{1000}{2} = 500W$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.