Same current is flowing in two alternating circuits. The first circuit contains only inductance and the other contains only a capacitor. If the frequency of the e.m.f. of ac is increased, the effect on the value of the current will be

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Increases in the first circuit and decreases in the other

Increases in both the circuits

Decreases in both the circuits

Decreases in the first circuit and increases in the other

answer is D.

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Detailed Solution

For the first circuit i=VZ=VR2+ω2L2∴ Increase in ω will cause a decrease in i. For the second circuit i=VR2+1ω2C2∴ Increase in ω will cause an increase in i.

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