Networks Analysis and Synthesis - Engineering

Q1:

A coil of resistance R and inductance L is connected in series with 10 mF capacitor. The resonant frequency is 1000 Hz. Another 10 F capacitor is connected in parallel with the above capacitor. The new resonance frequency will be

A 1000 Hz

B more than 1000 Hz

C less than 1000 Hz

D may be more or less than 10000 Hz

ANS:C - less than 1000 Hz

Total capacitance increases and therefore ωr decreases.