For a polar molecule, which of the following statements is true?

The centre of gravity of electrons and protons do not coincide

The centre of gravity of electrons and protons coincide

The charge distribution is always symmetrical

The dipole moment is always zero

The diagrams below show regions of equipotential. A positive charge is moved from A to B in each diagram.

In all the four cases the work done is the same.

Maximum work is required to move q in figure (c).

Minimum work is required to move q in figure (a).

Maximum work is required to move q in figure (b).

EASY

CUET (UG)

IMPORTANT

Earn 100

What is the electric potential at a distance of 9 cm from 3 nC?

44.57% studentsanswered this correctly

Important Questions on Electrostatic Potential and Capacitance

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 11

A charge

q

is fixed. Another charge

Q

is brought near it and rotated in a circle of radius

r

around it. Work done during rotation is

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 12

An electric charge

10^{- 3} μ C

is placed at the origin

(0, 0)

. Two points

A

and

B

are situated at

(\sqrt{2}, \sqrt{2})

and

(2, 0)

respectively. The potential difference between the points

A

and

B

will be

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 13

An electric charge

10^{- 3} μ C

is placed at the origin

(0, 0)

of the

X - Y

coordinate system. Two points

A

and

B

are situated at

(\sqrt{2}, \sqrt{2})

and

(2,0)

, respectively. The potential difference between the points

A

and

B

will be

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 14

An electric charge

10^{- 3} μ C

is placed at the origin

(0, 0)

X - Y

co-ordinate system. Two points

A

and

B

are situated at

(\sqrt{2}, \sqrt{2})

and

(2, 0)

respectively. The potential difference between the points

A

and

B

will be -

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 15

Charge of

+ 1 e s u

+ 2 e s u

and

+ 3 e s u

are placed at the three corners of a square. What charge should be placed at the fourth corner so that, the potential at the centre may be zero? One side of the square is

2 c m

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 16

When two uncharged metal balls, each of radius

0.09 m m

, collide, two electrons are transferred between them. The potential difference between them would be

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 17

Three charges are located on a horizontal axis as shown. The potential at a point

M

at distance

r

is -

(r ≫ d)

EASY

CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 18

Charges of

+ \frac{10}{3} \times 10^{- 9} C

are placed at each of the four corners of a square of side

8 cm

. The potential at the intersection of the diagonals is

What is the electric potential at a distance of 9 cm from 3 nC?

Important Questions on Electrostatic Potential and Capacitance

Learn and Prepare for any exam you want !