A certain electric motor produced $15 K J$ of energy each second as numerical work and lost $2 K J$ as heat to the surroundings. What is the change in the internal energy of the motor and its power supply each second?

8 k J

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- 5 k J

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- 17 k J

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None of these

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Solution

The correct option is C $- 17 k J$

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A certain electric motor produced 15KJ of energy each second as numerical work and lost 2KJ as heat to the surroundings. What is the change in the internal energy of the motor and its power supply each second?

The correct option is C −17kJ

A certain electric motor produced $15 K J$ of energy each second as numerical work and lost $2 K J$ as heat to the surroundings. What is the change in the internal energy of the motor and its power supply each second?

The correct option is C $- 17 k J$