Question

An electric heater is resistance 230ohm connected to 230v supply calculate the heat energy produced by in 5 minutes​

Answer 1

Answer:

Heat energy = 1150 joules.

Explanation: Given:- R = 230 ohm, V = 230v , t = 5 min

According to heating effect of electric current:-

H = I²Rt = v²t/R = vIt

H = v²t/R

H = (230)²× 5/ 230

H = 230 ×230 × 5 / 230

H = 230 × 5

H = 1150 joules.

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Answer 2

Answer:

Heat= 69,000 J

Explanation:

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