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An electric iron of resistance 20Omega t...

An electric iron of resistance `20Omega` takes a current of 5 A. Calculate the heat developed in 30 sec.

Text Solution

Verified by Experts

R = 20` Omega`
I = 5 A
t = 30 sec
`H = I^(2) Rt = 5^(2) xx20 xx30 = 15000 J = 15 J`
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