Magnetic Effects of Current and Magnetism (AIIMS (All India Institute of Medical Sciences) Physics): Questions 19 - 21 of 49

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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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Question number: 20

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

Appeared in Year: 1999

MCQ▾

Question

Angle of dip is 90° at: [AIIMS]

Choices

Choice (4) Response

a.

Magnetic equator

b.

Magnetic poles

c.

None of the above

d.

All of the above

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Question number: 21

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

Appeared in Year: 2003

MCQ▾

Question

The earth’s magnetic field at a given point isEquation . This field is to be annulled by magnetic induction at the center of a circular conducting loop of radius 5.0 cm. The current required to be flown in the loop is nearly: [AIIMS]

Choices

Choice (4) Response

a.

0.4 A

b.

0.2 A

c.

40 A

d.

4 A

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