Physics, 02.09.2019 03:30 yorblayo17011
A72 ohm coil of wire is connected in series with an adjustable resistor (rheostat) whose resistance can be varied from 0 to 88 ohms. if the line potential of wire is 115 volts, what is the rheostat resistance when power taken by the coil is 90 watts?
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A72 ohm coil of wire is connected in series with an adjustable resistor (rheostat) whose resistance...
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