BITSAT SERIES Physics
Electrostatic Potential
10 previous year questions.
Volume: 10 Ques
Yield: Medium
High-Yield Trend
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2021 1
2019 1
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2005 Chapter Questions 10 MCQs
01
PYQ 2005
medium
physics ID: bitsat-2
The work done in carrying a charge once round a circle of radius with a charge at the centre is :
1
2
3
4
none of the above
02
PYQ 2009
hard
physics ID: bitsat-2
A bar magnet is long is kept with its north ( )-pole pointing north. A neutral point is formed at a distance of from each pole:
Given the horizontal component of earth's field is Gauss, the pole strength of the magnet is
1
9 A-m
2
6.75 A-m
3
27 A-m
4
1.35 A-m
03
PYQ 2010
medium
physics ID: bitsat-2
In a region, the potential is represented by
V(x,y,z)=6x-8xy-8y+6yz, where V is in volts and x,y,z are in metres. The electric force experienced by a charge of 2 coulomb situated at point (1,1,1) is:
1
6√(5)N
2
30N
3
24N
4
4√(35)N
04
PYQ 2011
medium
physics ID: bitsat-2
A hollow metal sphere of radius 5 cm is charged such that the potential at its surface is 10 V. The potential at a distance of 2 cm from the centre of the sphere is:
1
zero
2
10 V
3
4 V
4
(10)/(3) V
05
PYQ 2014
medium
physics ID: bitsat-2
Electric field in the region is given by . The correct expression for the potential in the region is [assume potential at infinity is zero]:
1
2
3
4
06
PYQ 2015
medium
physics ID: bitsat-2
At the three vertices of an equilateral triangle of side , three point charges are placed (each of ). If this system is supplied energy at the rate of , calculate the time required to move one of the charges to the mid-point of the line joining the other two. 
1
2
3
4
07
PYQ 2017
medium
physics ID: bitsat-2
A long, hollow conducting cylinder is kept coaxially inside another long, hollow conducting cylinder of larger radius. Both the cylinders are initially electrically neutral.
1
a potential difference appears between the two cylinders when a charge density is given to the inner cylinder.
2
a potential difference appears between the two cylinders when a charge density is given to the outer cylinder.
3
no potential difference appears when a uniform line charge is kept along the axis of the cylinders.
4
no potential difference appears when same charge density is given to both the cylinders.
08
PYQ 2018
medium
physics ID: bitsat-2
Electric potential at any point is V = -5x + 3y + √(15)z. The magnitude of the electric field is:
1
2
3
4
7
09
PYQ 2019
medium
physics ID: bitsat-2
At the corners of an equilateral triangle of side a = 1m, three point charges each of 0.1C are placed. If the system is supplied energy at the rate of 1kW, calculate the time required to move one of the mid-point of the line joining the other two.
1
2
3
4
54h
10
PYQ 2021
medium
physics ID: bitsat-2
A long, hollow conducting cylinder is kept coaxially inside another hollow conducting cylinder of larger radius. Both the cylinders are initially electrically neutral.
1
a potential difference appears between the two cylinders when a charge density is given to the inner cylinder.
2
a potential difference appears between two cylinders when a charge density is given to the outer cylinder.
3
no potential difference appears between the two cylinders when a uniform line charge is kept along the axis of the cylinders.
4
no potential difference appears between the two cylinders when same charge density is given to both cylinders.