MHT CET Medical202622 April 2026Morning ShiftPhysicsAlternating CurrentActual
An a.c. source is connected to a capacitor 'C'. Due to increase in its operating frequency
Options
- Acapacitive reactance increases.
- Bcapacitive reactance remains constant.
- Cpeak current increases.
- Dpeak current decreases.
Correct answer
C. peak current increases.
Step-by-step solution
The capacitive reactance is given by X_C = 1 C = 1 2 f C . As the operating frequency f increases, the capacitive reactance X_C decreases. The peak current is given by I₀ = V₀ X_C = V₀ (2 f C) . Since f increases, the peak current I₀ increases. Answer: peak current increases.