the reason why do we preferred an $a.c.$ voltage instead of $d.c.$ voltage.
the reason why do we preferred an $a.c.$ voltage instead of $d.c.$ voltage.
Similar Questions
What are $A.C.$ signals ?
What are $A.C.$ signals ?
The $AC$ voltage across a resistance can be measured using a
The $AC$ voltage across a resistance can be measured using a
- [JEE MAIN 2015]
An electric lamp is connected to $220 V, 50 Hz$ supply. Then the peak value of voltage is......$V$
An electric lamp is connected to $220 V, 50 Hz$ supply. Then the peak value of voltage is......$V$
If instantaneous current is given by $i = 4\cos \,(\omega \,t + \phi )$ amperes, then the $r.m.s$. value of current is
If instantaneous current is given by $i = 4\cos \,(\omega \,t + \phi )$ amperes, then the $r.m.s$. value of current is
If $I_1, I_2, I_3$ and $I_4$ are the respective $r.m.s$. values of the time varying currents as shown in the four cases $I, II, III$ and $IV$. Then identify the correct relations.
If $I_1, I_2, I_3$ and $I_4$ are the respective $r.m.s$. values of the time varying currents as shown in the four cases $I, II, III$ and $IV$. Then identify the correct relations.