Physics, asked by sathusuresh03, 1 year ago

what is the current drawn by a bulb rated 40w and 220v

Answers

Answered by amitkolasani

1

P = (v²) / R

40 =(220²) / R

R = 220 x 220/40

R = 1210Ω

V = IR

220 = I x 1210

I = 220/1210

I = 2/11 A

sathusuresh03: thank u for ur help

amitkolasani: u r welc

amitkolasani: is the ans correct?

sathusuresh03: yes

amitkolasani: ohk then happy to help

sathusuresh03: which school r u

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