Physics · Capacitors and R-C Circuits

JEE Main 2026 — 28 January, Evening Shift — Question 35

Identify the correct statements :

A. Effective capacitance of a series combination of capacitors is always smaller than the smallest capacitance of the capacitor in the combination.

B. When a dielectric medium is placed between the charged plates of a capacitor, displacement of charges cannot occur due to insulation property of dielectric.

C. Increasing of area of capacitor plate or decreasing of thickness of dielectric is an alternate method to increase the capacitance.

D. For a point charge, concentric spherical shells cantered at the location of the charge are equipotential surfaces.

Choose the correct answer from the options given below.

  1. Option A:

    A, B and C only

  2. Option B:

    C and D only

  3. Option C:

    A, C and D only

    Correct
  4. Option D:

    B and D only

Answer: C

Step-by-step solution

For series combination 1Ceq=1C1+1C2\frac{1}{\mathrm{C}_{\mathrm{eq}}}=\frac{1}{\mathrm{C}_{1}}+\frac{1}{\mathrm{C}_{2}} ∴Ceq\therefore \mathrm{C}_{\mathrm{eq}} is less than C1\mathrm{C}_{1} & C2\mathrm{C}_{2}. Note : In statement C, capacitor is assumed to be completely filled with dielectric then on decreasing thickness of dielectric capacitance will increase.

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Subject
Physics
Chapter
Capacitors and R-C Circuits
Topic
Combination of Capacitors and Circuit Analysis
Identify the correct statements : A. Effective capacitance of a… | JEE Main 2026 PYQ with Solution · DhiX AI