An electric heater of resistance 500Ω is connected to a mains supply for 30 min. If 15A current flows through the filament of the heater, then calculate the heat energy produced in the heater.
We know that the formula of heat is given by:
Heat, H = I2 Rt
Where;
t = 30 min = 30×60 sec = 1800sec
I = 15A
R = 500Ω
Thus Total heat produced by the heater is 20.25× 107 J in 30 min due to flow of 15 A current.
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