Electrostatics (NEET Physics): Questions 12 - 16 of 107

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Passage

Three concentric spherical conductors A, B and C of radii R, 2R and 4R respectively. A and C is shorted and B is uniformly charged.

Three concentric spherical conductors

Three Concentric Spherical Conductors

Three concentric spherical conductors A, B and C of radii R, 2R and 4R respectively.

Question number: 12 (3 of 3 Based on Passage) Show Passage

» Electrostatics » Electric Potential

MCQ▾

Question

Potential at B is

Choices

Choice (4) Response

a.

5Q12πϵ0R

b.

Q4πϵ0R

c.

Q16πϵ0R

d.

None of the above

Question number: 13

» Electrostatics » Capacitors

MCQ▾

Question

Five identical plates each of area A are joined as shown in the figure. The distance between the plates is d. The plates are connected to a potential difference of V volts. The charge on plates 1 and 4 will be respectively

5 identical plates each with Area A

5 Identical Plates Each With Area A

Five identical plates each of area A are joined in figure.

Choices

Choice (4) Response

a.

ϵ0AVd,2ϵ0AVd

b.

ϵ0AV2d,ϵ0Ad

c.

ϵ0AV2d,2ϵ0AV2d

d.

All of the above

Question number: 14

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

An electric dipole has the magnitude of its charge is q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

Choices

Choice (4) Response

a.

Zero and minimum

b.

q. E and p. E

c.

2q. E and minimum

d.

q. E and maximum

Question number: 15

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

Two equal negative point charges 2µC place1 m apart from each other in air. so what is the potential energy of the system?

Choices

Choice (4) Response

a.

2eV

b.

2 J

c.

4 J

d.

0.036 J

Question number: 16

» Electrostatics » Equipotential Surfaces

MCQ▾

Question

In the electric field of a point charge q, a certain charge is carried from point A to B, C, D and E. Then the work done by electric force is

 Image of a equipotential sphere

Image of a Equipotential Sphere

A, B, C, D, E are on the equipotential sphere. +q point charge placed at the center of the sphere.

Choices

Choice (4) Response

a.

Zero along all the paths AB,

b.

Least along AE

c.

Least along the path AD

d.

Least along the path AB

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