Question

Two bulbs A and B are rated 100 Watt , 120 volt and 10Watt , 120 volt. They are connected in parallel across 120 volt source. Find the current in each bulb and which bulb will cosume more energy

Answer 1

$P=VI$
Also, circuit is in parallel, therefore Potntial Difference will be same for both bulbs

For current in A, $100=120*I$, $I = 0.83A$

For current in B, $10=120*I$, $I=0.083A$