Question

♻an electric iron of resistance 20bohm takes a current of 50 A . calculate the heat developed in 30s. ??❎❎

Answer 1

hello@

here is u r answer@

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I = 5 A

R = 20 ohm

T = 30 sec

now ,.

h = I ^2 × R × t

(5 )^2 × 20 × 30

25 × 20 × 30

= 15000 j

thus , the heat develop is 15000 joules.

I hope help u

Answer 2

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