The reciprocal of the total effective resistance of an $LCR$ $a.c.$ circuit is called:

What is capacitive reactance? Write its unit.

What is the ratio of inductive reactance to capacitive reactance in an $AC$ circuit?

If a resistor of resistance $4 \Omega$,a capacitor of capacitive reactance $6 \Omega$ and an inductor of inductive reactance $9 \Omega$ are connected in series with an ac source,then the impedance of the circuit is (in $\Omega$)

What are phasors?

In an $A.C.$ circuit,the reactance of a coil is $\sqrt{3}$ times its resistance. The phase difference between the voltage across the coil and the current through the coil will be