An electric heater of resistance is connected to a mains supply for minutes

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Circuits · Electric Circuits

Problem

An electric heater of resistance 40 Ω40\,\Omega is connected to a 200 V200\,\text{V} mains supply for 1010 minutes. How much heat energy is produced? (a) 60 kJ60\,\text{kJ} (b) 360 kJ360\,\text{kJ} (c) 600 kJ600\,\text{kJ} (d) 120 kJ120\,\text{kJ}

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