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Electric field intensity questions with solutions
Practice Electrostatic for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
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- NumericmediumElectrostatic
A stream of positively charged particles having q/m = 2 × 10¹¹ C/kg and velocity v₀ = 3 × 10⁷ m/s along +x direction is deflected by an electric field of magnitude 1.8 kV/m along +y direction. The electric field exists in a region of 10 cm along x direction. Due to the electric field, the deflection of the charged particles in the y direction is _____ mm.
JEE Mains 2023 24 jan morning shift
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A thin circular ring of radius R carries total charge q uniformly. A point charge Q of the same sign is placed at the centre. Neglect deformation of the ring. The increase ΔT in the tensile force in the ring is:
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- MCQmediumElectrostatic
Two identical infinite positively charged sheets and a positively charged spherical body are arranged as shown in the original figure. Which relation between the electric fields at points A, B, C and D is correct?
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JEE Mains 2025 4 April Morning Shift
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An infinitely long line charge of linear charge density λ lies parallel to the y-axis along x = 0, z = 2 m. The electric field at point P(1,1,1) m is:
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A uniformly charged semicircular arc ABCD produces electric field magnitude E₀ at its centre O. The arcs AB, BC and CD subtend equal angles at O. The end arcs AB and CD are removed. The electric field magnitude at O due to the remaining arc BC is:
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- MCQeasyElectrostaticOpen question & full solution →
A circular arc of radius R has fixed linear charge density λ and subtends angle θ at its centre. Using E = (2kλ/R) sin(θ/2),what happens to the field at the centre as θ → 0?
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- MCQmediumElectrostatic
An infinitely long positively charged straight thread has a linear charge density λ C m⁻¹. An electron revolves along a circular path having axis along the length of the wire. The graph that correctly represents the variation of the kinetic energy of electron as a function of radius of circular path from the wire is:
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JEE Mains 2024 04 Apr Morning Shift
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A thread with uniform linear charge density λ is bent into a circular arc of radius R subtending angle θ at the centre. The arc is symmetric about its angular bisector. The electric field magnitude at the centre is:
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- NumericmediumElectrostatic
Four uniformly charged wires of length a are arranged to form a square. Linear charge density of each wire is as shown. Electric field intensity at centre of square is nkλ/a then value of n
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A charged pendulum bob of mass m and charge q is at angle 60° above the +x-axis as shown. A uniform electric field E acts along +x. When released and it passes the x-axis, its speed is:
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JEE Mains 2025 28 Jan Morning Shift
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