A DC motor takes 15 kW input, constant losses = 2 kW, armature Cu loss = 1 kW, output power = ?

Option 1: 10 kW

Option 2: 11 kW

Option 3: 12 kW

Option 4: 13 kW

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Correct Option: 3

Explanation

Total losses = 3 kW; therefore output = 15 − 3 = 12 kW.