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## Electrostatics

### Physics

#### Previous Years Questions

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Consider two concentric conducting sphere of radii R and 2R respectively. The inner sphere is given a charge +Q. The oth...
WB JEE 2022
A neutral conducting solid sphere of radius R has two spherical cavities of radius a and b as shown in the figure. Cent...
WB JEE 2022
Two charges, each equal to $$-$$q are kept at ($$-$$a, 0) and (a, 0). A charge q is placed at the origin. If q is given ...
WB JEE 2022
The electric potential for an electric field directed parallel to X-axis is shown in the figure. Choose the correct plot...
WB JEE 2022
Two point charges +q1 and +q2 are placed a finite distance d apart. It is desired to put a third charge q3 in between th...
WB JEE 2021
Three infinite plane sheets carrying uniform charge densities $$-$$ $$\sigma$$, 2$$\sigma$$, 4$$\sigma$$ are placed para...
WB JEE 2021
A metal sphere of radius R carrying charge q is surrounded by a thick concentric metal shell of inner and outer radii a ...
WB JEE 2021
The variation of electric field along the Z-axis due to a uniformly charged circular ring of radius a in XY-plane as sho...
WB JEE 2021
Two pith balls, each carrying charge + q are hung from a hook by two springs. It is found that when each charge is tripl...
WB JEE 2020
A very long charged solid cylinder of radius a contains a uniform charge density p. Dielectric constant of the material ...
WB JEE 2020
Four identical point masses, each of mass m and carrying charge + q are placed at the corners of a square of sides a on ...
WB JEE 2020
As shown in the figure, a point charge q1 = + 1 $$\times$$ 10-6 C is placed at the origin in xy-plane and another poin...
WB JEE 2020
A negative charge is placed at the midpoint between two fixed equal positive charges, separated by a distance 2d. If the...
WB JEE 2019
Eleven equal point charges, all of them having a charge +Q, are placed at all the hour positions of a circular clock of ...
WB JEE 2019
The bob of a pendulum of mass m, suspended by an inextensible string of length L as shown in the figure carries a small ...
WB JEE 2018
Four equal charges of value + Q are placed at any four vertices of a regular hexagon of side 'a'. By suitably choosing t...
WB JEE 2018
Consider a region in free space bounded by the surfaces of an imaginary cube having sides of length a as shown in the fi...
WB JEE 2018
A point charge $$-$$ q is carried from a point A to another point B on the axis of a charged ring of radius r carrying a...
WB JEE 2018
A unit negative charge with mass M resides at the mid-point of the straight line of length 2a adjoining two fixed charge...
WB JEE 2017
A particle with charge Q coulomb, tied at the end of an inextensible string of length R metre, revolves in a vertical pl...
WB JEE 2017
A charge of 0.8 coulomb is divided into two charges Q1 and Q2. These are kept at a separation of 30 cm. The force on Q1 ...
WB JEE 2017
A positive charge Q is situated at the centre of a cube. The electric flux through any face of the cube is (in SI units)
WB JEE 2017
64 identical spheres of charge q and capacitance C each are combined to form a large sphere. The charge and capacitance ...
WB JEE 2008
4 point charges each +q is placed on the circumference of a circle of diameter 2d in such a way that they form a square....
WB JEE 2008

## MCQ (More than One Correct Answer)

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Two positive charges Q and 4Q are placed at points A and B respectively, where B is at a distance d units to the right o...
WB JEE 2018

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