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Heating Effect of Electric Current

In the given ...

Question

In the given circuit the reading of voltmeter $V_{1}$ and $V_{2}$ are 300 volts each. The reading of the voltmeter $V_{3}$ and ammeter A are respectively

100 V, 2.0 A

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150 V, 2.2 A

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220 V, 2.2 A

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220 V, 2.0 A

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Solution

The correct option is C 220 V, 2.2 A
$V_{1}$ and $V_{2}$ are equal and out of phase with each other and thus get cancelled. Thus $V_{3} = 220 V$ and $i = \frac{220}{100} = 2.2 A$

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