Find how long will the cassette operate at normal power

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Reference no: EM13277055

Awalker's cassette tape player uses four AA batteries in series to provide 6V to the player circuit. The four alkaline battery cells store a total of 200watt-seconds of energy. If the cassette player is drawing a constant 10mA from the battery pack, how long will the cassette operate at normal power?

Reference no: EM13277055

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