AIIMS (All India Institute of Medical Sciences) Physics: Questions 472 - 474 of 500

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Question number: 472

» 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 –

[MP]

Choices

Choice (4) Response

a.

b.

c.

d.

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Question number: 473

» Electrostatics » Electric Field Due to a Dipole

Appeared in Year: 1997

MCQ▾

Question

The electric dipole is placed along the x - axis at the origin O. A point P is at a distance of from this origin such that OP makes an angle with the x - axis. If the electric field at P makes an angle with the x - axis, the value of would be – [MP PMT]

Choices

Choice (4) Response

a.

b.

c.

d.

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Question number: 474

» Current Electricity » Electric Current

MCQ▾

Question

A current of exists in a copper wire of cross - section . Assuming each copper atom contributes one free electron. Calculate the drift speed of the free electrons in the wire. The density of copper is and atomic mass .

Choices

Choice (4) Response

a.

b.

c.

d.

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