Magnetic Effects of Current and Magnetism-Magnetic Moment (BITSAT Physics): Questions 1 - 3 of 3

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 158 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 150.00 or

Question number: 1

» Magnetic Effects of Current and Magnetism » Magnetic Moment

MCQ▾

Question

What is the magnitude of magnetic force per unit length of a wire carrying a current of 5A and making an angle of 30° with direction of a uniform magnetic field of 0.1T ?

Choices

Choice (4) Response
a.

0.55Nm

b.

0.35Nm

c.

0.45Nm

d.

0.25Nm

Question number: 2

» Magnetic Effects of Current and Magnetism » Magnetic Moment

MCQ▾

Question

Two magnets each of magnetic moment M are placed so as to form a cross at right angle to each other. The magnetic moment of the system will be –

Choices

Choice (4) Response
a.

2M

b.

M

c.

2M

d.

0.5 M

Question number: 3

» Magnetic Effects of Current and Magnetism » Magnetic Moment

MCQ▾

Question

A bar magnet of magnetic moment 200Am2 is suspended in a magnetic field of intensity 0.25NAm the couple required to deflect it through 300 is –

Choices

Choice (4) Response
a.

20Nm

b.

25Nm

c.

50Nm

d.

15Nm

Sign In