Electrostatics (NEET Physics): Questions 21 - 24 of 107

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Question number: 21

» Electrostatics » Electric Field

MCQ▾

Question

Three infinitely long non-conducting charge sheets are placed as shown in figure. The electric field at point P is

Infinitely long non-conducting charge sheets

Infinitely Long Non-Conducting Charge Sheets

Infinitely long non-conducting charge sheets parellel to the x axis.

Choices

Choice (4) Response

a.

4 σ 0 k

b.

2σϵ0k^

c.

4σϵ0k^

d.

2σϵ0k^

Question number: 22

» Electrostatics » Electric Potential

MCQ▾

Question

Four equal charges Q are placed at the four corners of a square of each side ‘a’ Work done in removing a charge - Q from its center to infinity is

Choices

Choice (4) Response

a.

2Q2πϵ0a

b.

Q22πϵ0a

c.

2Q24πϵ0

d.

0

Question number: 23

» Electrostatics » Electric Field

MCQ▾

Question

Charges q, 2q, 3q and 4q are placed at the corners A, B, C and D of a square as shown in the following figure. The direction of electric field at the center of the square is parallel to side.

Square ABCD having different charges at all corners

Square ABCD Having Different Charges at All Corners

Charges q, 2q, 3q and 4q are placed at the corners A, B, C and D of a square

Choices

Choice (4) Response

a.

CB

b.

AC

c.

BD

d.

AB

Question number: 24

» Electrostatics » Electric Potential

MCQ▾

Question

S is a solid neutral conducting sphere. A point charge q of 1 x 10 -6 C is placed at point A. C is the center of sphere and AB is a tangent. BC = 3m and AB = 4m.

Solid neutral conducting sphere.

Solid Neutral Conducting Sphere.

S is a solid neutral conducting sphere. A point charge q of 1 x 10 - 6 C is placed at point A.

(1) The electric potential of the conductor is 1.8 kV

(2) The electric potential of the conductor is 2.25 kV

(3) The electric potential at B due to induced charges on the sphere is - 0.45 kV

(4) The electric potential at B due to induced charges on the sphere is 0.45 kV

Choices

Choice (4) Response

a.

1 and 4

b.

1 and 2

c.

1 and 3

d.

1, 2 and 3

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