Two lamps are rated 40W and 220V each are connected in series. The total power dissipated in both lamps is
A
10W
B
20W
C
40W
D
80W
E
None of the above
Verified Correct Answer: D.
Physical Principles & Numerical Solution
The total power dissipated by both lamps = 40W + 40W = 80W
Since they are connected in series, the total power dissipated will be equal to the sum of the power dissipated in each lamp.
Source: Myschool Past Questions Archive (Record #41580)