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Electrostatics — BITSAT Physics PYQs

36 previous year questions from Electrostatics with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

36 questionsPhysicsSolutions on every page
1

An oil drop of radius 1 ~m is held stationary under a constant electric field of 3.65 10^4 ~N / C due to some excess electrons presence on it. If the density of oil drop is 1.26 ~g

BITSAT 2024 Solution View → 2

The potential of a large liquid drop when eight liquid drops are combined is 20 V , then the potential of each single drop was

BITSAT 2024 Solution View → 3

A dust particle of mass 4 10⁻¹² mg in suspended in air under the influence of an electric field of 50 ~N / C directed vertically upwards. How many electrons were removed from the n

BITSAT 2024 Solution View → 4

Electric field at point (30,30,0) due to a charge of 0.008 C placed at origin will be, (coordinates are in cm )

BITSAT 2024 Solution View → 5

If two charges q₁ and q₂ are separated with distance ' d ' and placed in a medium of dielectric constant K . What will be the equivalent distance between charges in air for the sam

BITSAT 2024 Solution View → 6

Electric potential at a point 'P' due to a point charge of 5 10⁻⁹ C is 50 V . The distance of ' P ' from the point charge is: (Assume, 1 4 ₀ =9 10⁺⁹ Nm ^2 C ⁻² )

BITSAT 2024 Solution View → 7

Five charges +q,+5 q,-2 q,+3 q and -4 q are situated as shown in the figure, The electric flux due to this configuration through the surface S is :

BITSAT 2024 Solution View → 8

In a cuboid of dimension 2 ~L 2 ~L L , a charge q is placed at the centre of the surface ' S ' having area of 4 ~L ^2 . The flux through the opposite surface to ' S ' is given by

BITSAT 2023 Solution View → 9

The force between two small charged spheres having charges of 1 10⁻⁷ C and 2 10⁻⁷ C placed 20 ~cm apart in air is

BITSAT 2023 Solution View → 10

Which one of the following graphs represents the variation of electric potential with distance r from the centre of a non-conducting charged sphere of radius R ?

BITSAT 2022 Solution View → 11

The electric potential V is given as a function of distance ( metre ) by V= (5 x²+10 x-4 ) volt. Question: Value of electric field at x=1 ~m is

BITSAT 2021 Solution View → 12

A charge Q is placed at each of the opposite corners of a square. A charge q is placed at each of the other two corners. If the net electrical force on Q is zero, then Q q equals:

BITSAT 2021 Solution View → 13

Three charge q, Q and 4q are placed in a straight line of length l at points distant 0, 1 2 and l respectively from one end. In order to make the net froce on q zero, the charge Q

BITSAT 2020 Solution View → 14

A charge +q is at a distance L / 2 above a square of side L . Then what is the flux linked with the surface?

BITSAT 2020 Solution View → 15

In the following figures, which figure represents the variation of the electric field with distance from the centre of a uniformly charged non-conducting spheres of radius R ?

BITSAT 2019 Solution View → 16

Two metal plates having a potential difference of 800 V are 2 cm apart. It is found that a particle of mass 1 . 96 × 10 - 15 kg remains suspended in the region between the pla

BITSAT 2017 Solution View → 17

Three charges are placed at the three vertices of an equilateral triangle of side a as shown in the figure. The force experienced by the charge placed at the vertex A in a directio

BITSAT 2017 Solution View → 18

The surface charge density of a thin charged disc of radius R is . The value of the electric field at the centre of the disc is 2 ₀ . With respect to the field at the centre, the e

BITSAT 2016 Solution View → 19

Two identical charged spheres suspended from a common point by two massless strings of lengths I, are initially at a distance d ( d <<1) apart because of their mutual repulsion. Th

BITSAT 2016 Solution View → 20

A solid sphere of radius R has a charge Q distributed in its volume with a charge density =k r^ a , where k and a are constants and r is the distance from its centre. If the electr

BITSAT 2015 Solution View → 21

At the corners of an equilateral triangle of side a (1 metre), three point charges are placed (each of 0.1 C ). If this system is supplied energy at the rate of 1 kw , then calcula

BITSAT 2015 Solution View → 22

A spherically symmetric gravitational system of particles has a mass density = array ll ₀ & for r R 0 & for r > R array . where r ₀ is a constant. A test mass can undergo circular

BITSAT 2014 Solution View → 23

Two point dipoles p k and p 2 k are located at (0,0,0) and (1 ~m , 0,2 ~m ) respectively. The resultant electric field due to the two dipoles at the point (1 ~m , 0,0) is

BITSAT 2014 Solution View → 24

Electric field in theregion is given by E = ( M x ³ ) i , then the correct expression for the potential in the region is [assume potential at infinity is zero]

BITSAT 2014 Solution View → 25

Two long coaxial and conducting cylinders of radius a and b are separated by a material of conductivity and a constant potential difference V is maintained between them, by a batte

BITSAT 2014 Solution View → 26

Three equal charges (q) are placed at corners of an equilateral triangle of side a . The force on any charge is

BITSAT 2013 Solution View → 27

In a region of space having a uniform electric field E , a hemispherical bowl of radius r is placed. The electric flux through the bowl is

BITSAT 2012 Solution View → 28

The electric field intensity just sufficient to balance the earth's gravitational attraction on an electron will be: (given mass and charge of an electron respectively are 9.1 10⁻³

BITSAT 2012 Solution View → 29

In an uniformly charged sphere of total charge Q and radius R , the electric field E is plotted as function of distance from the centre. The graph which would correspond to the abo

BITSAT 2011 Solution View → 30

A charge Q ₁ exerts some force on a second charge Q ₂ . If a 3 rd charge Q ₃ is brought near, then the force of Q ₁ exerted on Q ₂-

BITSAT 2011 Solution View → 31

A hollow metal sphere of radius 5 ~cm is charged such that the potential on its surface is 10 ~V . The potential at a distance of 2 ~cm from the centre of the sphere is

BITSAT 2011 Solution View → 32

A charge +q is at a distance L / 2 above a square of side L . Then what is the flux linked with the surface?

BITSAT 2010 Solution View → 33

Two metallic spheres of radii 1 ~cm and 3 ~cm are given charges of -1 10⁻² C and 5 10⁻² C , respectively. If these are connected by a conducting wire, the final charge on the bigge

BITSAT 2010 Solution View → 34

In a region, the potential is represented by V ( x , y , z )=6 x -8 xy -8 y +6 yz , where V is in volts and x , y , z are in metres. The electric force experienced by a charge of 2

BITSAT 2010 Solution View → 35

If an electron has an initial velocity in a direction different from that of an electric field, the path of the electron is

BITSAT 2009 Solution View → 36

If on combining two charged bodies, the current does not flow then

BITSAT 2009 Solution View →
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