1
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Two point charges +q1 and +q2 are placed a finite distance d apart. It is desired to put a third charge q3 in between these two charges, so that q3 is in equilibrium. This is
2
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
As shown in the figure, a point charge q1 = + 1 $$ \times $$ 10-6 C is placed at the origin in xy-plane and another point charge q2 = + 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 Ex in x-direction?

In that case, which of the following graph(s) shows most correctly the electric field vector in Ex 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
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Physics
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Vector Algebra
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