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Question

In the given circuit the readings of the voltmeter $$V_1$$ and the ammeter $$A$$ are:
22776_8b23988a7c28401694d58d990970308c.png


A
220 V, 2.2 A
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B
110 V; 1.1A
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C
220 V, 1.1 A
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D
110 V; 2.2 A
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Solution

The correct option is D 220 V, 2.2 A
$$w=100\pi\Omega$$
we observe that $$w^2=\dfrac{1}{LC}$$
i.e. this frequency is resonance frequency
all the voltage drop across resistor.
$$\therefore v_1=220V$$
and  $$i=\dfrac{V_1}{R}$$
$$=\dfrac{220}{100}$$
$$=2.2A$$

Physics

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