What will be $r.m.s.$ value of given $A.C.$ over one cycle.
${V_0}$
$\frac{{{V_0}}}{{\sqrt 2 }}$
$\frac{{{V_0}}}{2}$
$\frac{{{V_0}}}{4}$
The voltage of an $ac$ supply varies with time $(t)$ as $V = 120\sin 100\,\pi \,t\cos 100\pi \,t.$ The maximum voltage and frequency respectively are
Two cables of copper are of equal lengths. One of them has a single wire of area of cross-section $A$, while other has $10$ wires of cross-sectional area $A / 10$ each. Give their suitability for transporting $A.C.$ and $D.C.$
If instantaneous current is given by $i = 4\cos \,(\omega \,t + \phi )$ amperes, then the $r.m.s$. value of current is
In an ac circuit, peak value of voltage is $423\, volts$. Its effective voltage is .......... $volts$
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.....$A$