Magnetic Effects of Current and Magnetism-Electromagnets and Permanent Magnets (NEET Physics): Questions 1 - 2 of 2

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2098 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 1

» Magnetic Effects of Current and Magnetism » Electromagnets and Permanent Magnets

MCQ▾

Question

The material of permanent magnet has

Choices

Choice (4) Response

a.

High retentivity, high coercivity

b.

High retentivity, low coercivity

c.

Low retentivity, high coercivity

d.

Low retentivity, low coercivity

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: 2 (1 of 1 Based on Passage) Show Passage

» Magnetic Effects of Current and Magnetism » Electromagnets and Permanent Magnets

MCQ▾

Question

Magnetic force F acting on charge is proportional to –

Choices

Choice (4) Response

a.

Fx2+y2

b.

F(x2y2)

c.

F does not depend on x or y co-ordinate

d.

F(x2+y2)

Sign In