Fundamentholfundamenthol

JEE Main 2026 Jan 28 Shift 2, Physics Q10: Capacitors And Capacitance

JEE Main2026Jan 28, Shift 2Physics
Q.

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 centered at the location of the charge are equipotential surfaces.

Choose the correct answer from the options given below.

  1. A

    A, B and C only

  2. B

    C and D only

  3. C

    A, C and D only

  4. D

    B and D only

Solution

A. In series, , so is smaller than every individual capacitance — TRUE.

B. In a dielectric, bound charges undergo polarisation (small displacement) even though no free conduction occurs — FALSE.

C. . Increasing or, when the dielectric fully fills the gap, reducing thickness — both raise . TRUE.

D. Field of a point charge is radial; concentric spheres are perpendicular to it and thus equipotential — TRUE.

Correct: A, C, and D.

Concept behind this question

Capacitors And CapacitanceNotes, formulas and examples →

More previous year questions on Capacitors And Capacitance

Practice more Physics

Concept-wise practice with instant solutions on Fundamenthol.

Start practicing →