Question

Two bulbs A and B are rated as 60 W -120 V and 100 W – 120 V respectively. They
are connected in parallel across a 120 V source. Find the current in each bulb. Which
bulb will consume more energy?

Answer 1

We know that P=VI

Then, in the First bulb

P=60w V=120v and I=P/V

= 60/120 = 1/2 =0.5 A

And, in the 2nd bulb

P= 100w V= 120v

l= 100/120= O.83A

As the bulbs are connected in parallel across

then which bulb has more power that will consume more energy.

So, answer is 100w-120V