The voltage of an ac source varies with time according to the equation $V = 100\sin \;100\pi t\,\cos \,100\pi t$ where $t$ is in seconds and $V$ is in volts. Then
The peak voltage of the source is $100$ volts
The peak voltage of the source is $50$ volts
The peak voltage of the source is $100/\sqrt 2 $ volts
The frequency of the source is $50\, Hz$
The alternating current in a circuit is described by the graph shown in figure. Show rms current in this graph.
Which of the following components of a $LCR$ circuit, with $ac$ supply, dissipates energy
A direct current of $5\,A$ is superposed on an alternating current $I =10 \sin \omega t$ flowing through the wire. The effective value of the resulting current will be
The mean value of current for half cycle for a current variation shown by the graph is
If a direct current of $'a'$ amp is superimposed with an alternating current $'I = b\,sin \,\omega t',$ then effective value of resulting current is