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Electrostatics — JEE Physics MCQs

Master Electrostatics for JEE Main with free physics MCQs. Each question includes a detailed solution and instant feedback — practice at easy, medium, and hard difficulty levels to build exam-ready confidence.

10 practice questions with instant feedback and solutions.

Easy•Electrostatics
Two identical point charges qq are placed rr apart in vacuum. If the magnitude of the electrostatic force between them is FF, what will be the force when the distance between them is doubled?
Easy•Electrostatics
Work done in moving a charge of 22 μC between two points with potential difference 1010 V is:
Easy•Electrostatics
The electric field at a distance of 22 m from a point charge of 8×10−98 \times 10^{-9} C in vacuum is (Take k=9×109k = 9 \times 10^9 N·m²/C²):
Easy•Electrostatics
A solid sphere of radius RR has a uniform volume charge density ρ\rho. The electric field at a distance r=R/2r = R/2 from the center of the sphere is:
Easy•Electrostatics
An electric dipole of moment p⃗\vec{p} is placed in a non-uniform electric field E⃗=E0xi^\vec{E} = E_0 x\hat{i}, where E0E_0 is a constant. If the dipole is aligned along the x-axis with its center at the origin, the net force on the dipole is:
Easy•Electrostatics
A parallel plate capacitor with plate area AA and separation dd is charged to a potential difference VV. A dielectric slab of dielectric constant KK and thickness dd is inserted between the plates while the capacitor remains connected to the battery. The ratio of the final energy stored to the initial energy stored is:
Easy•Electrostatics
A cube of side aa is placed in a uniform electric field E⃗=E0i^\vec{E} = E_0\hat{i}. The total electric flux through the cube is:
Medium•Electrostatics
Three point charges +2 μC+2\,\mu C, −3 μC-3\,\mu C, and +4 μC+4\,\mu C are placed at the vertices of an equilateral triangle of side 11 m. The electric potential at the centroid of the triangle is (Take k=9×109k = 9 \times 10^9 N·m²/C²):
Medium•Electrostatics
The electric potential in a region is given by V=3x2+4yV = 3x^2 + 4y volts, where xx and yy are in meters. The magnitude of the electric field at the point (1,2)(1, 2) is:
Medium•Electrostatics
[JEE Mains 2026] A simple pendulum with a bob of mass m and charge q is in equilibrium in the presence of a uniform horizontal electric field E. If the thread makes an angle θ with the vertical, what is the tension in the thread?