Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by whitelisting our website.

A coil of resistance R and inductance L is connected in series with 5 μF capacitor. The source frequency is equal to resonance frequency and circuit current is 0.5 A. Another 5 F capacitor is connected in parallel with the above capacitor. The circuit current will be

/ Electronics And Communication Engineering, Networks Analysis And Synthesis / By
Question: A coil of resistance R and inductance L is connected in series with 5 μF capacitor. The source frequency is equal to resonance frequency and circuit current is 0.5 A. Another 5 F capacitor is connected in parallel with the above capacitor. The circuit current will be
[A].

0.5 A

[B].

more than 0.5 A

[C].

less than 0.5 A

[D].

0.5 A or less

Answer: Option C

Explanation:

Since C increases, the circuit will not be in resonance. Therefore, current decreases (In series resonant circuit current is maximum at resonance).