Physics, asked by wwwvinodalax6077, 1 year ago

A 2000W-200Vheater runs on 110vfor10second. Find energy

Answers

Answered by Anonymous

0

given:

p=v²/r

2000=200²/r

r=40000/2000 ohm

=20 ohm

as resistance remains constant

thus

p=v²/r

=110²/20

=12100/20

=605 watt

thus,energy =power * time

=605*10 j

=6050 j

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