An electric iron os resistance 20 Omega ...

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

`1.5 xx 10^4J`

`2.5 xx 10^2J`

`1.5 xx 10^5J`

`1.5 xx 10^2J`

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

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