Physics GK 22 – Magnetism

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Which of the following is correct about magnetic field?

Magnetic field has magnitude but no direction

Magnetic field has both magnitude and direction

Magnetic field may or may not have direction

None of the above

Which is the direction of magnetic field inside a magnet?

from south pole to north pole

from north pole to south pole

from north pole till centre of the magnet

None of the above

Which of the following is correct about magnetic field lines?

Magnetic field lines are closed curves

Degree of closeness of the field lines shows the strength of the magnetic field

Both a and b

None of the above

What is the relationship between the magnetic field in the straight conductor and the distance from it?

magnetic field decreases as the distance increases

magnetic field increases as the distance increases

magnetic field is independent of the distance

None of the above

What is the direction of force as per Fleming’s left hand rule?

parallel to the direction of magnetic field and perpendicular to the direction of current

parallel to the direction of magnetic field and current

perpendicular to the direction of magnetic field and current

perpendicular to the direction of magnetic field and at 45° to the direction of current

Physics GK 22 - Magnetism