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An electric heater supplies heat to a...

An electric heater supplies heat to a system at a rate or 100 W. If the system performs work at a rate of 75 joules per second at what rate is the internal energy increasing ?

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An electric heater supplies heat to a system at a rate of 100W . If sustem performs work at a rate 74 Joul es per second, at what rate is the internal energy increasing?

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Knowledge Check

  • An electric heater supplies heat to a system at a rate of 120 W. if system performs work at a rate of 80J S^(-1) , the rate of increase in internal energy is

    A
    `30 JS^(-1)`
    B
    `40 JS^(-1)`
    C
    `50 JS^(-1)`
    D
    `60 JS^(-1)`

  • An electric heater is rated at 1 kW. What is the heat produced per hour?

    A
    1000 J
    B
    3600J
    C
    `3600 xx 10^(@)J`
    D
    60J

  • An electric heater is rated at 1 kW. What is the heat produced per hour?

    A
    1000 J
    B
    3600J
    C
    `3600 xx 10 ^(3) J`
    D
    `60 J`

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    Heat given to a system is 30 joules and work done by the system is 15 joules. The change in the internal energy of the system will be

    If the edge of a cube increases at the rate of 60 cm per second, at what rate the volume is increasing when the edge is 90 cm

    If the edge of a cube increases at the rate of 60cm per second, at what rate the volume in increasing when the edge is 90cm

    Heat given to a system is 35 joules and work done by the system is 15 joules. The change in the internal energy of the system will be

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