When a voltage measuring device is connected to AC mains, the meter shows the steady input voltage of 220 V. This means [NCERT Exemplar]
(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.
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The option C is correct answer.....
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I think answer is
(c) the meter reads not v but < v² > and is . calibrated to read √< v² > .
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