how many joule of electrical energy is converted into hat and light 50 w lamp is lit for 2 hours ?
Answers
Answered by
8
power = 50w
t = 2 hrs = 2 * 3600s = 7200s
energy = ?
energy = power * time
= 50 * 7200
= 360000 joules
= 3.6 * 10^5 J
t = 2 hrs = 2 * 3600s = 7200s
energy = ?
energy = power * time
= 50 * 7200
= 360000 joules
= 3.6 * 10^5 J
Answered by
5
we know that energy consumed=power×time
given power=50w and time=2hrs
=50×2/1000
=0.1kwh
by converting into joules we get
energy consumed = 360000J
given power=50w and time=2hrs
=50×2/1000
=0.1kwh
by converting into joules we get
energy consumed = 360000J
prashant09:
thanq
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