What are phasors?

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 $Omega$)

The resistance of a coil for $DC$ is $5\,\Omega.$ In $AC,$ the resistance

The unit of reactance is

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

The instantaneous values of current and voltage in an $AC$ circuit are $i = 100 \sin(314t) \ A$ and $e = 200 \sin(314t + \pi/3) \ V$ respectively. If the resistance is $1 \ \Omega$,then the reactance of the circuit will be: