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MHT CET 202622 AprilMorning Shift
Exam
MHT CET
Year
2026
Date
22 April
Shift
Morning Shift
Subject
Physics
Chapter
Alternating Current

MHT CET 2026 · 22 April · Morning Shift · Physics · Alternating Current

An a.c. source is connected to a capacitor 'C'. Due to increase in...

An a.c. source is connected to a capacitor 'C'. Due to increase in its operating frequency

Options

  1. Acapacitive reactance increases.
  2. Bcapacitive reactance remains constant.
  3. Cpeak current increases.
  4. Dpeak current decreases.

Correct answer

C. peak current increases.

Step-by-step solution

The capacitive reactance is given by XC=1ωC=12πfCX_C = \dfrac{1}{\omega C} = \dfrac{1}{2\pi f C}.

As the operating frequency ff increases, the capacitive reactance XCX_C decreases.

The peak current is given by I0=V0XC=V0(2πfC)I_0 = \dfrac{V_0}{X_C} = V_0 (2\pi f C).

Since ff increases, the peak current I0I_0 increases.

Answer: peak current increases.
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