NEET UG PHYSICS MCQ: THERMODYNAMICS

1 Easy

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Application +4 | -1

An electric heater supplies heat to a system at a rate of

100 \mathrm{~W}

. If the system does work at a rate of

75 \mathrm{~J}

per second, at what rate (in joules) is the internal energy increasing?

View answer and explanation

Correct option: A

Option A (25) is correct because the rate of increase in internal energy is the difference between the power supplied and the rate of work done by the system.

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