EASY
JEE Advanced
IMPORTANT
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Which of the following statement(s) correct ? 

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Important Questions on Electric Flux and Gauss's Law

MEDIUM
JEE Advanced
IMPORTANT

Charges Q, 2Q , 4Q are uniformly distributed in three dielectric solid spheres 1, 2, 3 of radii R2, R and 2R  respectively , as shown in the figure. If magnitudes of the electric fields at point P at a distance R from the centres of spheres 1, 2 and 3 are E1, E2, E3 respectively, then :

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HARD
JEE Advanced
IMPORTANT

The figure below depict two situations in which two infinitely long static line charges of constant positive line charge density λ are kept parallel to each other. In their resulting electric field, point charges q and -q are kept in equilibrium between them. The point charges are confined to move in the x-direction only. If they are given a small displacement about their equilibrium positions, then the correct statement (s) is (are)

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MEDIUM
JEE Advanced
IMPORTANT

Consider a uniform spherical charge distribution of radius R1 centered at the origin O. In this distribution, a spherical cavity of radius, centered at P with distance OP=a=R1-R2 (see figure) is made. If the electric field inside the cavity at position r is E(r), then the correct statement is / are:

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HARD
JEE Advanced
IMPORTANT

A cubical region of side a has its centre at the origin. It encloses three fixed point charges, -q at 0, -a4, 0, +3q at 0, 0, 0, -q at 0, +a/4, 0. Choose the correct option(s).

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HARD
JEE Advanced
IMPORTANT

Two nonconducting solid spheres of radii R and 2R having uniform volume charge densities ρ1 and ρ2, respectively, touch each other. The net electric field at a distance 2R from the centre of the smaller sphere, along the line joining the centre of the spheres, is zero. The ratio ρ1ρ2 can be:

HARD
JEE Advanced
IMPORTANT

Two nonconducting spheres of radii R1 and R2 and carrying uniform volume charge densities +ρ and -ρ, respectively, are placed such that they partially overlap, as shown in the figure. At all points in the overlapping region, 

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MEDIUM
JEE Advanced
IMPORTANT
Let E1rE2rE3r, respectively, be the electric fields at distance r from a point charge Q, an infinitely long wire of linear charge density λ and an infinite plane with uniform surface charge density σ. If E1r0=E2r0=E3r0 at a given distance r0, then
HARD
JEE Advanced
IMPORTANT

A point charge +Q is placed just outside an imaginary hemispherical surface of radius R as shown in the figure. Which of the following statements is/are correct?

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