MEDIUM
12th ICSE
IMPORTANT
Earn 100

The magnetic moment of a small magnet is 4.8 A m2. It is kept in earth’s magnetic field in magnetic meridian with its north pole pointing towards geographical south. The neutral points are situated at a distance of 30 cm from the centre of the magnet. Calculate the horizontal component of the earth’s magnetic field.

Important Questions on Magnetic Field and Earth's Magnetism

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 15
A small bar-magnet is placed in a horizontal plane with its axis in the magnetic meridian. Neutral points are obtained on its equatorial line at 12.5 cm  from the centre of the magnet. The earth’s magnetic field at the place is 0.38 G and the angle of dip is zero, (a) Find the total magnetic field on the axis of the magnet at 12.5 cm from the centre of the magnet, 
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 15
A small bar magnet is placed in a horizontal plane with its axis in the magnetic meridian. Neutral points are obtained on its equatorial line at 12.5 cm  from the centre of the magnet. The earth’s magnetic field at the place is 0.38 G and the angle of dip is zero, (b) Locate the neutral points when the magnet is turned around by 180°.