The current in the given circuit is increasing with $a$ rate $a = 4\, amp/s$. The charge on the capacitor at an instant when the current in the circuit is $2 \,amp$ will be :......$\mu\, C$
$4$
$5$
$6$
none of these
In given circuit, voltage across the inductor will be .....$V$
Three alternating voltage sources $V_1$ = $3 sin \omega t $ volt , $V_2= 5 sin(\omega t + \phi _1)$ volt and $V_3 = 5 sin(\omega t -\phi_2 )$ volt connected across a resistance $R= \sqrt {\frac{7}{3}} \Omega $ as shown in the figure (where $ \phi_1$ and $ \phi_2$ corresponds to $30^o $ and $127^o $ respectively). Find the peak current (in Amp) through the resistor
If instantaneous current is given by $i = 4\cos \,(\omega \,t + \phi )$ amperes, then the $r.m.s$. value of current is
Which of the following components of a $LCR$ circuit, with $ac$ supply, dissipates energy
An alternating current is given by the equation $i=i_{1} \sin \omega t+i_{2} \cos \omega t$. The rms current will be