Q 1801223128.     When a voltage measuring device is connected to AC mains, the meter shows the steady input voltage of 220 V. This means

NCERT Exemplar 07/03/MCQ
A

input voltage cannot be AC voltage, but a DC voltage

B

maximum input voltage is 220 V

C

the meter reads not v but `< v^2 >` and is calibrated to read `sqrt(< v^2 >)`

D

the pointer of the meter is stuck by some mechanical defect

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