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.
Correct option is C) When a voltage measuring device is connected to ac mains, the meter reads RMS
