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
An $AC$ source rated $220\, V , 50\, Hz$ is connected to a resistor. The time taken by the current to change from its maximum to the rms value is
What is the sum of the instantaneous current values over one complete $AC$ cycle ?
Write the common meaning of voltage.
The voltage of $AC$ source varies with time according to the equation, $V = 100\, \sin 100\, \pi \, t \, \cos \,100\, \pi \,t$. Where $t$ is in second and $V$ is in volt. Then:-
If the value of potential in an $ac$, circuit is $10V$, then the peak value of potential is