| Directions : (6-10) |
| AC Voltage Applied to a Capacitor |
| Let a source of alternating e.m.f. \[E={{E}_{0}}\] \[\sin \omega t\] be connected to a capacitor of capacitance C. If 'I' is the instantaneous value of current in the circuit at instant t. then \[I=\frac{{{E}_{0}}}{I/\omega C}\,\sin \left( \omega t+\frac{\pi }{2} \right)\]. The capacitive reactance limits the amplitude of current in a purely capacitive circuit and it is given by \[{{X}_{C}}=\frac{1}{\omega C}\]. |
 |
A) farad
B) ampere
C) ohm
D) \[oh{{m}^{-1}}\]
Correct Answer: C
Solution :
Ohm is the unit of capacitive reactance.
You need to login to perform this action.
You will be redirected in
3 sec
