How long will the cassette tape player operate at normal power?
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
https://brainmass.com/engineering/power-engineering/how-long-will-the-cassette-tape-player-operate-at-normal-power-22307
Solution Summary
total time = energy/power
$2.49