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Electrical Oscillations

If the readin...

Question

If the reading in voltmeter $V_{1}$ is $40 V$ , then what is the reading of voltmeter $V_{2}$ ?

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Solution

$V_{r m s} = \frac{50 \sqrt{2}}{2} = 50$
$V_{2} = \sqrt{V_{r m s}^{2} - V_{1}^{2}} = \sqrt{50^{2} - 40^{2}} = 30 V$

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