A student says: the average voltage of the mains over… | StemPy Lab

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A student says: the average voltage of the mains over… | StemPy Lab

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A student says: the average voltage of the mains over one cycle is zero, so a mains heater cannot get hot. Which reply is correct?

PhysicsHardHigh School (11–12)Electricity & Magnetism › Alternating Current A-Level IB

Created by StemPy Lab

A student says: the average voltage of the mains over one cycle is zero, so a mains heater cannot get hot. Which reply is correct?

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← A capacitor of 3.3 µF is joined to a source of frequency 50 Hz. What is its reactance?At 600 Hz the peak of the current in a circuit comes 0.45 ms before the peak of the voltage. By what angle does the current lead the voltage? →

More onElectricity & Magnetism › Alternating Current

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