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    How long will the cassette tape player operate at normal power?

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    A walker's cassette tape player uses 4 AA batteries in series to provide 6V to the player circuit. The four alkaline battery cells store a total of 200 watts-second of energy. The cassette player is drawing a constant 10ma from the battery pack.

    How long will the cassette tape player operate at normal power?

    a) 8.3 x 10**2 sec
    b) 3.3 x 10**3 sec
    c) 13.3 x 10**3 sec
    d) 26.6 x 10**3 sec

    © BrainMass Inc. brainmass.com October 9, 2019, 4:06 pm ad1c9bdddf
    https://brainmass.com/engineering/power-engineering/how-long-will-the-cassette-tape-player-operate-at-normal-power-22307

    Solution Summary

    total time = energy/power

    $2.19