When a capacitor is connected in series with series LR circuit, the alternating current in the circuit increases. Why ?

When a capacitor is connected in series LR circuit the alternating current flowing in the circuit increases. Explain why.

When a capacitor of small capacitance is connected in series with L-R circuit. The alternating current in the circuit increases. Explain why ?

When a capacitance is connected in series with a series L-R, a.c. circuit, the total impedance of the circuit

When a capacitor of 100 muF is connected in series with a series LR circuit fed with ac, power factor of the circuit (L = 1H, R = 100 Omega,f = 50 Hz )