When a voltage measuring device is connected to AC mains, the meter shows the steady input voltage of 220V. This means (a) input voltage cannot be AC voltage, but a DC voltage. (b) maximum input voltage is 220V. (c) the meter reads not v but <v2> and is calibrated to read √< v2 > . (d) the pointer of the meter is stuck by some mechanical defect.

When a voltage measuring device is connected to AC mains, the meter sh

1.	When a voltage measuring device is connected to AC mains, the meter shows the steady input voltage of 220V. This means (a) input voltage cannot be AC voltage, but a DC voltage. (b) maximum input voltage is 220V. (c) the meter reads not v but <v2> and is calibrated to read √< v2 > . (d) the pointer of the meter is stuck by some mechanical defect.
Answer» (c) the meter reads not v but <v²> and is calibrated to read √< v² > .

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