Q.

An ac source is connected to a capacitor. The current in the circuit is I. Now a dielectric slab is inserted into the capacitor, then the new current is

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a

Equal to 1

b

More than 1

c

Less than 1

d

Sometimes more and sometimes less than 1

answer is B.

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Detailed Solution

More than I  Because when capcitance is increased reactance and hence impedance of the circuit decreases which results increase in current.
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