1

WB JEE 2021

MCQ (Single Correct Answer)

+1

-0.25

Two point charges +q

_{1}and +q_{2}are placed a finite distance d apart. It is desired to put a third charge q_{3}in between these two charges, so that q_{3}is in equilibrium. This is2

WB JEE 2020

MCQ (Single Correct Answer)

+1

-0.25

As shown in the figure, a point charge q

In that case, which of the following graph(s) shows most correctly the electric field vector in E

_{1}= + 1 $$ \times $$ 10^{-6}C is placed at the origin in xy-plane and another point charge q_{2}= + 3 $$ \times $$ 10^{-6}C is placed at the coordinate (10, 0).In that case, which of the following graph(s) shows most correctly the electric field vector in E

_{x}in x-direction?3

WB JEE 2020

MCQ (Single Correct Answer)

+1

-0.25

Four identical point masses, each of mass m and carrying charge + q are placed at the corners of a square of sides a on a frictionless plane surface. If the particles are released simultaneously, the kinetic energy of the system when they are infinitely far apart is

4

WB JEE 2020

MCQ (Single Correct Answer)

+1

-0.25

A very long charged solid cylinder of radius a contains a uniform charge density p. Dielectric constant of the material of the cylinder is K. What will be the magnitude of electric field at a radial distance x (x < a) from the axis of the cylinder?

Questions Asked from Electrostatics (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

WB JEE Subjects

Physics

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Vector Algebra
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Center of Mass
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Properties of Matter
Heat and Thermodynamics
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Modern Physics

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Some Basic Concepts of Chemistry
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Redox Reaction
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Periodic Table
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