# How many joule of electrical energy is converted into hat and light 50 w lamp is lit for 2 hours ?

2
by prashant09

2015-02-21T21:50:30+05:30

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power = 50w
t = 2 hrs = 2 * 3600s  = 7200s
energy = ?
energy = power *  time
= 50 * 7200
= 360000 joules
= 3.6 * 10^5 J

2015-02-21T21:52:30+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
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