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Questions  

A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the source constant, then 

a
Bulb will give more intense light
b
Bulb will give less intense light
c
Bulb will give light of same intensity as before
d
Bulb will stop radiating light

detailed solution

Correct option is A

When a bulb and a capacitor are connected in series to an ac source, then on increasing the frequency the current in the circuit is increased, because the impedance of the circuit is decreased. So the bulb will give more intense light.

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Similar Questions

The diagram shows a capacitor C and a resistor R connected in series to an ac source. V1  and V2  are voltmeters and A is an ammeter

Consider now the following statements
I. Readings in A and V2 are always in phase
II. Reading in V1 is ahead in phase with reading in V2
III. Readings in A and V1 are always in phase 

Which of these statements are/is correct  


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