100 maximum

31.

The AC working voltage (ACWV) of a capacitor is always .707 x the DCWV.

This is because the maximum AC voltage applied to a capacitor must not exceed

the DCWV of that capacitor.

In an AC circuit, when Emax = 100 volts, Eeff = .707 x 100 volts = 70.7 volts. See

the AC waveform below.

A capacitor rated at 150 DCWV has an ACWV of

volts

rms.

106.05

32.

A capacitor rated at 200 DCWV is placed in an AC circuit with an Eeff of 176.75

volts rms. The capacitor goes:

Why did the capacitor blow?

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