32 JEE Main 2021 Electrostatics previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2021 previous-year questions from the Electrostatics chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Electrostatics chapter hub.
A point charge of + 12   μ C is at a distance 6   cm vertically above the centre of a square of side 12…
512 identical drops of mercury are charged to a potential of 2   V each. The drops are joined to form a single dro…
A simple pendulum of mass ' m ', length ' l ' and charge ' + q ' suspended in the electric field produced by two conduc…
The relative permittivity of distilled water is 81 . The velocity of light in it will be: ( Given μ r = 1
A certain charge Q is divided into two parts q and ( Q - q ) . How should the charges Q and q be divided so that q and…
A particle of mass 1   mg and charge q is lying at the mid-point of two stationary particles kept at a distance 2…
A uniformly charged disc of radius R having surface charge density σ is placed in the x y plane with its center at…
27 similar drops of mercury are maintained at 10   V each. All these spherical drops combine into a single big dro…
Choose the incorrect statement: (a) The electric lines of force entering into a Gaussian surface provide negative flux.…
Figure shows a rod A B , which is bent in a 120 ° circular arc of radius R . A charge   ( - Q ) is uniformly…
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