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An electric heater of resistance 8 Ω draws 15 \(A\) from the service mains \(2\ hours\). Calculate the rate at which heat is developed in the heater.
 
[Note: Enter the answer as a whole number.]
 
\(I\) \(=\) 15 \(A\)
 
\(R\) \(=\) 8 Ω
 
The formula for the amount of heat produced is
 
P=iii=ii×i
 
Thus, the amount of heat produced from an electric heater is \(J/s\).