If an alternating voltage is represented as $E = 141\,sin\, (628\,t),$ then the rms value of the voltage and the frequency are respectively
$141V,\,628Hz$
$100V,\,50Hz$
$100V,\,100Hz$
$141V,\,\,100Hz$
In the given $A.C.$ circuit, the instantaneous current through inductor and capacitor are $0.8 \,A$ and $0.4 \,A$ respectively. The instantaneous current through resistor is ........
In general in an alternating current circuit
For the $RC$ circuit shown, the resistance is $R = 10.0\ W$, the capacitance is $C = 5.0\ F$ and the battery has voltage $\xi= 12$ volts . The capacitor is initially uncharged when the switch $S$ is closed at time $t = 0$. At some time later, the current in the circuit is $0.50\ A$. What is the magnitude of the charge across the capacitor at that moment?.......$µC$
An alternating voltage $V = 300\sqrt 2 sin(100t)$ is connected to a $1\ \mu F$ capacitor through an $AC$ ammeter. The reading of the ammeter will be.....$mA$
The ratio of peak value and r.m.s value of an alternating current is