Inductive reactance of a coil is expressed in

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

Write the $SI$ unit of capacitive reactance.

The resistance of a coil for $dc$ is $R$ ohms. In $ac$, the effective resistance of the coil:

The impedance of a coaxial cable,when its inductance is $0.40 \mu H$ and capacitance is $1 \times 10^{-11} F$,is given by: (in $Omega$)

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 $Omega$)