Electrostatics (AIIMS Physics): Questions 27 - 29 of 36

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Question number: 27

» Electrostatics » Electric Potential

MCQ▾

Question

Calculated the kinetic energy of a point charge of 6μC at x=3m . This charge is initially at rest at the origin. And a uniform electric field of 4kNC1 is in x direction.

Choices

Choice (4) Response
a.

24mJ

b.

72mJ

c.

24mJ

d.

72mJ

Question number: 28

» Electrostatics » Electric Field Due to a Point Charge

Appeared in Year: 2000

MCQ▾

Question

Figure below show regular hexagon, the charges are placed at the vertices. In which of the following cases the electric field at the centre is zero. [AMU]

Choices

Choice (4) Response
a.
Regular hexagon with charges at vertices - Choice A

Regular Hexagon With Charges at Vertices - Choice A

In figure a regular hexagon is shown. And the charges are placed at the vertices of the hexagon.

b.
Regular hexagon with charges at vertices - Choice B

Regular Hexagon With Charges at Vertices - Choice B

In figure a regular hexagon is shown. And the charges are placed at the vertices of the hexagon.

c.
Regular hexagon with charges at vertices - Choice C

Regular Hexagon With Charges at Vertices - Choice C

In figure a regular hexagon is shown. And the charges are placed at the vertices of the hexagon.

d.
Regular hexagon with charges at vertices - Choice D

Regular Hexagon With Charges at Vertices - Choice D

In figure a regular hexagon is shown. And the charges are placed at the vertices of the hexagon.

Question number: 29

» Electrostatics » Gauss's Law

Appeared in Year: 2001

MCQ▾

Question

Electric charge is uniformly distributed along a long straight wire of radius 1 mm. The charge per cm length of the wire is Q coulomb. Another cylindrical surface of radius 50 cm and length 1 m symmetrically encloses the wire as shown in fig. The total flux passing through the cylindrical surface is –

A cylindrical surface enclosed a wire

A Cylindrical Surface Enclosed a Wire

In figure a cylindrical surface of 1 m long and radius 50 cm is enclosed a wire of radius 1 mm is shown.

[MP]

Choices

Choice (4) Response
a.

10Qπϵ0

b.

100Qϵ0

c.

100Qπϵ0

d.

Qϵ0

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