A 140-Ω resistor connected across a 50.0-Hz ac power supply of voltage amplitude 85.0 V produces heat in the resistor at a certain rate. If you want to replace the ac source with a dc power supply and still produce the same rate of heating, what should be the voltage Vdc of the dc source?
A 140-Ω resistor connected across a 50.0-Hz ac power supply of voltage amplitude 85.0 V produces heat in the resistor at a certain rate. If you want to replace the ac source with a dc power supply and still produce the same rate of heating, what should be the voltage Vdc of the dc source?
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A 140-Ω resistor connected across a 50.0-Hz ac power supply of voltage amplitude 85.0 V produces heat in the resistor at a certain rate.
If you want to replace the ac source with a dc power supply and still produce the same rate of heating, what should be the voltage Vdc of the dc source?
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