MCQ
An $A.C.$ circuit containing only capacitance, the current:
- ALags the voltage by $90^\circ $
- ✓Leads the voltage by $90^\circ $
- CRemains in phase with voltage
- DLags the voltage by $180^\circ $
✓
Answer
Correct option: B.
Leads the voltage by $90^\circ $
In an $a.c.$ circuit containing resistance onIy voltage $\ $ current remain in the same phase. If circuit contains inductance only, voltage remains ahead of current by phase difference of $90^\circ $. If circuit contains capacitance only, current remains ahead of voltage by a phase difference of $90^\circ .$
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