Magnetic Effects of Current and Magnetism-Electric Charge Moving in Magnetic Field (NEET Physics): Questions 26 - 28 of 28

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Passage

Read the passage given below and answer the questions that follows:

A charge particles q enters in a magnetic field B=yi^+xj^ with the velocity v=xi^+yj^ . Neglect any force other than magnetic force. Now answer the following question.

Question number: 26 (2 of 2 Based on Passage) Show Passage

» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field

MCQ▾

Question

Which of the following is true for the direction of magnetic force?

Choices

Choice (4) Response
a.

If x > y then force works along (-z) direction

b.

If x < y then force works along (+z) direction

c.

If x > y then force works along (+z) direction

d.

None

Question number: 27

» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field

MCQ▾

Question

A particle with charge q, moving with a momentum p, enters a uniform magnetic field normally. The magnetic field has magnitude B and is confined to a region of width d, where d<pBq, The particle is deflected by an angle θ in crossing the field. Then

Uniform magnetic field with moving charge particle

Uniform Magnetic Field With Moving Charge Particle

Here in figure cross represent the uniform magnetic field is confined to a region width d. A particle with charge q is moving with a momentum p, towards this uniform magnetic field.

Choices

Choice (4) Response
a.

sinθ=Bqdp

b.

sinθ=pBqd

c.

sinθ=pdBq

d.

sinθ=Bpqd

Question number: 28

» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field

Appeared in Year: 2016

MCQ▾

Question

An electron is moving in a circular path under the influence of a transvers magnetic field of 3.57×102T. If the value of em is 1.76×1011Ckg , the frequency of revolution of the electron is:

Choices

Choice (4) Response
a.

1GHz

b.

62.8MHz

c.

100MHz

d.

6.82MHz

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