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12th West Bengal Board

IMPORTANT

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Consider a system of three charges $\frac{q}{3}, \frac{q}{3}$ and $\frac{2 q}{3}$ Placed at points $A, B$ and $C$ respectively, as shown in the figure, Fig. $2.124$ . Take $O$ to be centre of the circle of radius $R$ and angle $C A B = 60^{°}$

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Important Questions on Interaction of Charged Particles, Electric Field and Potential

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 63

An electric dipole is placed at an angle of

30^{°}

to a nonuniform electric field. The dipole will experience

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 64

Two points

P

and

Q

are maintained at the potentials of

10 V

and

- 4 V

respectively. The work done in moving

100

electrons from

P

Q

MEDIUM

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 65

Two identical positive charges are fixed on the

Y

-axis at equal distance from the origin

O

. A negatively charged particle starts on the

X

-axis, at a large distance from

O

, moves along

X

-axis, passes through

O

and moves far away from

O

. Its acceleration

‘ a ’

is taken as positive along its direction of motion. The best graph, between the particle's acceleration and its

x

-coordinate is represented by (see Fig.

2.125

)

MEDIUM

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 66

An electric charge

10^{- 3} μ c

is placed at the origin

(0, 0)

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

HARD

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 67

Two charges

q_{1}

and

q_{2}

are placed

30 cm

apart, as shown in Fig.

2.126

A

third charge

q_{3}

is moved along the arc of a circle of radius

40 cm

from

C

D

. The charge in the potential energy of the system is

\frac{q_{3}}{4 π ε_{0}} k

, where

k

Question Image

HARD

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 68

A charge $+ q$ is placed at the origin $O$ of $X - Y$ axes as shown in Fig. $2.127$ . The work done in taking a charge $Q$ from $A$ to $B$ along the straight line $A B$ is

Question Image

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 69

Figure shows three points

A, B

and

C

in a region of uniform electric field

\vec{E}

. The line

A B

is perpendicular and

B C

is parallel to field lines. Then which of the following holds good.?

Question Image

HARD

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 70

Two thin wire rings each having a radius

R

are placed at a distance

d

apart with their axes coinciding. The charges on the two rings

+ q

and

- q

. The potential difference between the centres of the two rings is

Consider a system of three charges q3,q3 and 2q3 Placed at points A, B and C respectively, as shown in the figure, Fig. 2.124. Take O to be centre of the circle of radius R and angle CAB=60°

Important Questions on Interaction of Charged Particles, Electric Field and Potential

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Consider a system of three charges $\frac{q}{3}, \frac{q}{3}$ and $\frac{2 q}{3}$ Placed at points $A, B$ and $C$ respectively, as shown in the figure, Fig. $2.124$ . Take $O$ to be centre of the circle of radius $R$ and angle $C A B = 60^{°}$