Which of the following graphs represents the variation of inductive reactance $(X_{L})$ with the frequency of the voltage source $(\nu)$?

In a circuit containing a pure resistor connected to an $AC$ source,

When an $a.c.$ source is connected across a pure capacitor, the correct phase relation between current and $emf$ is:

The reactance of a coil when used in the domestic $ac$ power supply $(220\, V, 50\, Hz)$ is $100\, \Omega$. The self-inductance of the coil is nearly........$H$.

$A$ pure inductor of $25.0 \; mH$ is connected to a source of $220 \; V$. Find the inductive reactance and rms current in the circuit if the frequency of the source is $50 \; Hz$.

$A$ series $LCR$ circuit is subjected to an $AC$ signal of $200 \,V, 50 \,Hz$. If the voltage across the inductor $(L=10 \,mH)$ is $31.4 \,V$,then the current in this circuit is $\qquad$