Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 78

MEDIUM

JEE Advanced

IMPORTANT

Earn 100

Two positive charges $12 μC$ and $8 μC$ are $10 cm$ apart. The work done in bringing them closer to $4 cm$ is

50% studentsanswered this correctly

Important Questions on Electrostatics

MEDIUM

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 79

Three charges

Q, (+ q)

and

(+ q)

are placed at the vertices of an equilateral triangle. If the net electrostatic energy of the system is zero, then

Q

is equal to

MEDIUM

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 80

Two particles of masses

m

and

2 m

with charges

2 q

and

q

are placed in a uniform electric field

E

and allowed to move for some time. Find the ratio of their kinetic energies.

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 81

When the separation between two charges is increased, the electric potential energy of the charges

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 82

If a positive charge is shifted from a low potential region to a high potential region, the electric potential energy

MEDIUM

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 83

The work done in carrying a charge of

5 μ C

from a point

A

to a point

B

in an electric field is

10 mJ .

Then, potential difference

(V_{B} - V_{A})

is

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 84

If electric field

E = 0

, at all points of a closed surface, then

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 85

Flux coming out from a positive unit charge placed in air, is

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 86

An electric dipole is kept in non-uniform electric field. It experiences