The $r.m.s.$ value of an ac of $50\,Hz$ is $10\,amp$ . The time taken by the alternating current in reaching from zero to maximum value and the peak value of current will be
$2 \times 10^{-2}\,sec$ and $14.14\,amp$
$1 \times 10^{-2}\,sec$ and $7.07\,amp$
$5 \times 10^{-3}\,sec$ and $7.07\,amp$
$5 \times 10^{-3}\,sec$ and $14.14\,amp$
What are $A.C.$ signals ?
A resistance of $20$ ohms is connected to a source of an alternating potential $V = 220\,sin\,(100\,\pi t)$. The time taken by the current to change from its peak value to r.m.s value is
What are $AC$ voltage ? Write the equation for $ac$ voltage.
The mean and $rms$ value of an alternating voltage for half cycle as shown in figure are respectively:-
A complex current wave is given by $i = 5 + 5\, sin\, (100\, \omega t)\, A$. Its average value over one time period is given as.....$A$