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Electrostatics questions with solutions
Practice Electrostatics for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 175 questions
- MCQdifficultElectrostaticsOpen question & full solution →
Two identical positive charges Q are fixed on the x-axis at x = -a and x = +a. A particle of mass m and charge q is placed near the origin. For q > 0 it performs small oscillations along the x-axis with period T₁. If q < 0, it performs small oscillations along the y-axis with period T₂. The ratio T₁/T₂ is:
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- MCQeasyElectrostaticsOpen question & full solution →
A total charge Q is uniformly distributed on a circular arc of radius R subtending angle θ at the centre. The electric field magnitude at the centre is:
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- MCQeasyElectrostatics
C₁ and C₂ are two hollow concentric cubes enclosing charges 2Q and 3Q respectively as shown in figure. The ratio of electric flux passing through C₁ and C₂ is:
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JEE Mains 2024 01 Feb Evening Shift
Open question & full solution → - NumericmediumElectrostatics
A particle of charge 1.6 μC and mass 16 μg is fired perpendicular to a uniform magnetic field of magnitude 6.28 T. Find the time in seconds taken by the particle to return to its original position for the first time.
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQmediumElectrostaticsOpen question & full solution →
An electric dipole of moment p is placed in the field E(x)=E₀(1+αx) î with its dipole moment parallel to î. At x=0, the net force and torque on the dipole are:
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- IntegermediumElectrostatics
A point charge q = 1 μC is located at a distance 2 cm from one end of a thin insulating wire of length 10 cm having a charge Q = 24 μC, distributed uniformly along its length, as shown in figure. Force between q and wire is ____ N.
(Use 1/(4πε₀) = 9 × 10⁹ N·m²/C²)
JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumElectrostaticsOpen question & full solution →
Two equal positive charges Q are fixed at x = ±a. A particle of mass m and charge q is constrained to move on the perpendicular bisector y-axis. Under gravity it has two equilibrium positions A and B with OA : OB
= 1 : 3√3. Which equilibrium position is stable?
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- MCQeasyElectrostaticsOpen question & full solution →
Three proposed electrostatic field-line patterns are described below:
I. Closed concentric circular field lines.
II. Straight, parallel field lines with arrows all in the same direction.
III. Field lines containing abrupt right-angle corners in empty space.Which pattern can represent a physically possible electrostatic field in a charge-free region?
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- MCQeasyElectrostatics
The electrostatic potential due to an electric dipole at a distance ‘r’ varies as :
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JEE Mains 2024 30 Jan Morning Shift
Open question & full solution → - MCQeasyElectrostatics
Two large parallel conducting plates are 10 cm apart and have a potential difference V. For the points A and B shown in the original figure, the potential difference V(AB) is:
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JEE Mains 2025 2 April Evening Shift
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