To reduce the resonant frequency in an LCR series circuit with a generator (a) the generator frequency should be reduced. (b) another capacitor should be added in parallel to the first. (c) the iron core of the inductor should be removed. (d) dielectric in the capacitor should be removed.
Correct option is B) Resonant frequency in series LCR circuit is vr=2πLC1 If capacitance C increases the resonant frequency will reduce, which can be achieved by adding another capacitor in parallel to the first.
