Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 117

EASY

NEET

IMPORTANT

Earn 100

In $H$ atom, an electron is rotating around the proton in an orbit of radius $r .$ Work done by an electron in moving once around the proton along the orbit will be-

50% studentsanswered this correctly

Important Questions on Electrostatics

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 118

You are given an arrangement of three-point charges

q

,

2 q

and

x q

separated by equal finite distances so that the electric potential energy of the system is zero. Then the value of

x

is

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 119

If a charge

q

is placed at the centre of the line joining two equal charges

Q

such that the system is in equilibrium, then the value of

q

is,

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 120

If

' n'

identical water drops assumed spherical each charged to potential energy

U

coalesce to a single drop, the potential energy of the single drop is (Assume that drops are uniformly charged):

HARD

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 121

Four charges equal to

- Q

are placed at the four corners of a square and a charge

q

is at its centre. If the system is in equilibrium, the value of

q

is

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 122

A family of equipotential surfaces are shown. The direction of the electric field at point $A$ is along -

Question Image

HARD

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 123

Some equipotential surfaces are shown in the figure. The magnitude and direction of the electric field is-

Question Image

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 124

The variation of potential with distance $r$ from a fixed point is shown in the figure. The electric field at $r = 5 cm,$ is:

Question Image

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 125

The electric field and the electric potential at a point are

E

and

V

, respectively.