Physics Questions And Answers :: Magnetic Movement: part1



Basic Science : Magnetic Movement QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :

1.The moment of the couple acting on a magnet of moment of 0.2 Am2 placed at an angle of 30° with the direction of a uniform magnetic fields of strength 50 amp-turn/m is

10 Nm
2 Nm
5 Nm
50 Nm

2.A thin uniform wire of length 1 m is magnetized and bent into a semicircle of radius r. Then the ratio of magnetic moments of unbent wire is

1 : r
r : 1
π : 2
2π : 1

3.When a bar magnet is suspended in a uniform magnetic field, the bar magnet

will move along the direction of the field
will move opposite to the direction of the field
will move perpendicular to the field
will turn in the filed

4.If a magnet is kept at right angles to a field of unit magnetic field, then the moment of the magnet is given by

M = 2m  H
M=2l sin θ
M=2l tan θ
M=2ml

5.A bar magnet kept in a magnetic field

becomes parallel to the field
aligns at right to the field
turns by 45°
turns by 90°

More Magnetic Movement QUESTIONS AND ANSWERS available in next pages

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