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If the reading of coltmenter V1 is 40 V,...

If the reading of coltmenter `V_1` is 40 V, what is the reading of voltmeter `V_2`?

Text Solution

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AC voitmeter reads rms value of voltage, RMS Voltage applied `= V_0/sqrt2 = 50 V`
Reading of voltmeter `V_2` is x, then `sqrt(x^1 + 40^2) = 50 V`
`rArr x = 30` volt
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