Question

An electric bulb rated 100W is operated for 4hrs. Find out electric current drawn by that bulb.

Answer 1

Answer:

≈0.083

Explanation:

P=Vi

V=it

so,

P=i^2t

i^2=P/t

i^2=100/4×60×60

i^2=1/4×36

i= 1/2×6

i= 1/12

i≈0.083