Electrostatics Quiz – JEE Main 2026 | 10 PYQ MCQ & Numericals

Electrostatics – JEE Main 2026 Quiz

10 Questions | MCQ + Numerical | Instant Result

Q1. Electric potential at a point due to a point charge of 5×10⁻⁹ C is 50 V. Distance of the point from the charge (in cm) is:

Correct Answer: 90 cm

Q2. An electric dipole of moment 6×10⁻⁶ C·m is placed in a uniform electric field of 1.5×10³ N/C. Work done in rotating the dipole by 180° (in mJ) is:

Correct Answer: 18 mJ

Q3. Ratio of Coulomb force to gravitational force between electron and proton is of order:

10¹⁹ 10³⁹ 10²⁹ 10³⁶

Q4. Electric field on the surface of a uniformly charged spherical shell of surface charge density σ is:

σ / 2ε₀ σ / ε₀ σ / 4ε₀ σ / (ε₀R)

Q5. Potential at the centre of a half ring of radius 10 cm and linear charge density 4 nC/m is xπ volt. Value of x is:

Correct Answer: 36

Q6. Dimensions of ε₀(dΦ_E/dt) are same as:

electric charge electric current electric field electric potential

Q7. Two charges q and 3q are separated by distance r. Distance from charge q where electric field is zero is:

r(1+√3) r / (1+√3) r / 3(1+√3) (1+√3)/r

Q8. Work done in rotating an electric dipole from parallel to antiparallel position in a uniform electric field is proportional to:

pE 2pE pE/2 zero

Q9. If electric flux through a closed surface is zero, then:

electric field is zero everywhere net charge inside is zero surface has no charge field lines do not pass

Q10. Electric potential energy of two charges +q and −q separated by distance r is:

positive negative zero infinite

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