Question:
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
(d) the pointer of the meter is stuck by some mechanical defect.
Solution:
(c) the meter reads not v but
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