Under what condition is the current in a series L.C.R.circuit maximum? Hence write the formula for resonant frequency.

Under what conditions are C4 plants superior to C3?

What is half power frequency in series LCR circuit.

Write the equation for impedance of series LCR circuit. Hence discuss the condition for resonance.

State the condition for series resonance. Obtain an expression for resonant frequency.

State the condition for series resonance. Obtain an expression for resonant frequency.

Define Q factor of series resonant circuit and state formula

In LCR series combination R = 10 Omega , L = 1 mH, C = 2 muF . Determine :- the current in the circuit when an alternating voltage of 10 mV operating at the resonant frequency is applied to the series combination.

Keeping the source frequency equal to the resonating frequency of the series LCR circuit, if the three elements,L , C and R are arranged in parallel,show that the total current in the parallel LCR circuit is minimum at this frequency. Obtain the current rms value in each branch of the circuit for the elements of frequency . Source has emf 230 V and L = 5.0 H , C = 80 mu F and R = 40 Omega .

How does the sign of the phase angle phi ,by the supply voltage leads the current in an LCR series circuit,change as the supply frequency is gradually increased from very low to very high values?

To reduce the resonant frequency in an LCR series circuit with a generator