1.

An electric heater supplies heat to a system at a rate of 100J/s. If system performs work at the rate of 75 Joule per second, the rate of increase of internal energy is

Answer»

`50 "JS"^(-1)`
`25 "JS"^(-1)`
`12.5 "JS"^(-1)`
`175 "JS"^(-1)`

ANSWER :B


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