Exercise Electrical Energy and Power

1. Two light bulbs labelled as 12 V 36 W and 12 V 6 W respectively are connected in parallel to a 12 V car battery. What is the total amount of heat energy dissipated from the two bulbs in 15 seconds?

Ans : 630J

March test 2011 answer scheme

Dear my students please check your answer .
Skeme Mar2011 Test