Physics, asked by rknair5507, 1 year ago

A torch rated 3v and current 600ma calculate the resistance if it is lighted for 4 hours

Answers

Answered by sonu1329

1

P=VI
=3into 0.6
=1.8
now p is 1.8 so
P=I^2R
P/I^2=R
1.8/0.36=R
R=5 ohm

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