Question

calculate the heat produced in 3 second in an electric heater of resistance 5 ohm connected to 15A current supply​

Answer 1

R = 5 ohm

I = 15A

t = 3s

H = I²Rt = 15×15×5×3 = 3375J

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Answer 2

Heat produced by the electric heater is 3375 Joules.

Explanation:

It is given that,

Resistance, R = 5 ohms

Current, I = 15 A

Time, t = 3 s

We need to find the heat produced by an electric heater. It is given by :

$H=I^2Rt$

$H=(15\ A)^2\times 5\ \Omega \times 3\ s$

H = 3375 J

So, the heat produced by the electric heater is 3375 Joules. Hence, this is the required solution.

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