EASY
12th West Bengal Board
IMPORTANT
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What is neutral point in a magnetic field? Explain where should we expect the neutral points when a bar magnet is placed in a table with its north pole pointing south,

Important Questions on Properties of Magnets and Terrestrial Magnetism

EASY
12th West Bengal Board
IMPORTANT

What is neutral point in a magnetic field? Explain where should we expect the neutral points when a bar magnet is placed in a table with its north pole pointing east.

EASY
12th West Bengal Board
IMPORTANT
Explain briefly the elements required to specify the earth's magnetic field at a place. How does the value of angle of dip vary from the earth's equator to the north pole ?
EASY
12th West Bengal Board
IMPORTANT
Two magnetic poles, one of which is 8 times as strong as the other, exerts on each other a force equal to the weight of 800 mg, when placed 10 cm apart. Calculate the strength of the two poles.
EASY
12th West Bengal Board
IMPORTANT
A bar magnet has poles of strength 64 Am which are 0.25 m apart. What is the magnetic moment of the magnet ?
EASY
12th West Bengal Board
IMPORTANT
Find the magnetic field due to a dipole of magnetic moment 2Am2 at point 1 m away from it in a direction making an angle 60° with the dipole axis.
EASY
12th West Bengal Board
IMPORTANT

A short bar magnet of magnetic moment 0.9JT-1 is placed with its axis at 30° to a uniform magnetic field. It experiences a torque of 0.063Nm.

Calculate the strength of the magnetic field and

HARD
12th West Bengal Board
IMPORTANT

A short bar magnet of magnetic moment 0.9JT-1 is placed with its axis at 30° to a uniform magnetic field. It experiences a torque of 0.063Nm. hat orientation of the bar magnet corresponds to its equilibrium position in the magnetic field?

MEDIUM
12th West Bengal Board
IMPORTANT
A bar-magnet placed in a uniform magnetic field of 0.3 T, with its axis at 30° to the field, experiences a torque of 0.06 N m. Find the magnetic moment of the bar-magnet.