An electric heater can offer a maximum resistance of 50 ohm when a 3 amber of current flows through it for a minute. what is the maximum amount of heat produced by the heater
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heat =current^2×resistance ×time ,,, current is 3A, time =1min(60sec) , resistance is 50 ohm ,,, heat =3×3×50×60 then heat is 27000joule
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