Magnetic Effects of Current and Magnetism (AIIMS (All India Institute of Medical Sciences) Physics): Questions 15 - 19 of 49

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Question number: 15

» Magnetic Effects of Current and Magnetism » Bar Magnet

Appeared in Year: 1995

MCQ▾

Question

Force between two identical bar magnets whose centers are r meter apart is 4.8 N when their axes are in same line. If separation is increased to 2r, the force between them is reduced to: [AIIMS]

Choices

Choice (4) Response

a.

0.6 N

b.

0.3 N

c.

1.2 N

d.

2.4 N

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Question number: 16

» Magnetic Effects of Current and Magnetism » Magnetic Moment

Appeared in Year: 2006

MCQ▾

Question

The magnetic moment has dimensions of – [AIIMS]

Choices

Choice (4) Response

a.

b.

c.

d.

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Question number: 17

» Magnetic Effects of Current and Magnetism » Earth's Magnetic Field

Appeared in Year: 2000

MCQ▾

Question

The magnetic needle of a tangent galvanometer is deflected at an angle 30°. The horizontal component of earth’s magnetic field is along the plane of the coil. The magnetic field of coil: [AIIMS]

Choices

Choice (4) Response

a.

b.

c.

d.

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Question number: 18

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

Appeared in Year: 2001

MCQ▾

Question

A closely wound flat circular coil of 25 turns of wire has diameter of 10 cm and carries a current of 4 ampere. Determine the magnetic flux density at the center of the coil: [AIIMS]

Choices

Choice (4) Response

a.

b.

c.

d.

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Question number: 19

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

Appeared in Year: 2004

MCQ▾

Question

The magnetic field due to a straight wire of uniform cross section of radius a and carrying a steady current is represented by –

[AIIMS]

Choices

Choice (4) Response

a.

b.

c.

d.

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