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

Asked by Vishal kumar | 1 year ago |  194

1 Answer

Solution :-

The amount of heat generated can be calculated using the Joule’s law of heating, which is given by the equation

H = VIt

Substituting the values in the above equation, we get,

H = 100 × 5 × 30 = 1.5 × 104 J

The amount of heat developed by the electric iron in 30 s is 1.5 × 104 J.

Answered by Shivani Kumari | 1 year ago

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