Magnetic Effects of Current and Magnetism (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 10 - 11 of 11

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Question number: 10

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

MCQ▾

Question

The magnetic field produced at the centre of a coil of radius R carrying a current i is B . The magnitude of magnetic field at a point lying on the axis of the coil at a distance 3R from the centre of the coil is –

Choices

Choice (4) Response

a.

B27

b.

B3

c.

B9

d.

B8

Question number: 11

» Magnetic Effects of Current and Magnetism » Para, Dia and Ferro-Magnetic Substances

Appeared in Year: 2016

MCQ▾

Question

A metallic sphere is kept in between two oppositely charged plates. The most appropriate representation of the field lines is –

Choices

Choice (4) Response

a.

A metallic sphere is kept between two plates : Choice A

A Metallic Sphere Is Kept Between Two Plates: Choice A

Figure shows a metallic sphere is kept between two oppositely charged plates.

b.

A metallic sphere is kept between two plates : Choice B

A Metallic Sphere Is Kept Between Two Plates: Choice B

Figure shows a metallic sphere is kept between two oppositely charged plates.

c.

A metallic sphere is kept between two plates : Choice C

A Metallic Sphere Is Kept Between Two Plates: Choice C

Figure shows a metallic sphere is kept between two oppositely charged plates.

d.

A metallic sphere is kept between two plates : Choice D

A Metallic Sphere Is Kept Between Two Plates: Choice D

Figure shows a metallic sphere is kept between two oppositely charged plates.

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