MCQ
An ac source is connected to a capacitor $C$. Due to decrease in its operating frequency :
- Acapacitive reactance remains constant.
- Bcapacitive reactance decreases.
- Cdisplacement current increases.
- ✓displacement current decreases.
✓
Answer
Correct option: D.
displacement current decreases.
d
$i _{ C }= i _{ D }=\frac{ V _{ O }}{ X _{ C }} \sin \omega t$
$i _{ C }= i _{ D }=\frac{ V _{ O }}{ X _{ C }} \sin \omega t$
$i _{ C }= i _{ D }=\left( V _{ O } \omega C \right) \sin \omega t$
On decreasing frequency $i_C \downarrow$
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