Two lamps rated 40W and 220V each are connected in series. The total power dissipated in both lamps is  - TEEZAB

Two lamps rated 40W and 220V each are connected in series. The total power dissipated in both lamps is 

Jamb 1978

Two lamps 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

ANSWER: Option  D

EXPLANATION: Since they are connected in series, total power dissipated will be equal to the sum of the power dissipated in each lamp.

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