Magnetism and M...

When the N-pole of a bar magnet points towards the south and S-pole towards the north, the null points are at the

Lines which represent places of constant angle of dip are called

The vertical component of the earth\'s magnetic field is zero at a place where the angle of dip is

A compass needle will show which of the following direction at the earth\'s magnetic pole

The north pole of the earth\'s magnet is near the geographical

The magnetic field of earth is due to

A short magnet of moment 6.75 Am² produces a neutral point on its axis. If horizontal component of earth\'s magnetic field is 5 × 10^–5 Wb/m², then the distance of the neutral point should be

Due to the earth\'s magnetic field, charged cosmic ray particles

Two bar magnets with magnetic moment 2 M and M are fastened together at right angles to each other at their centres to form a crossed system, which can rotate freely about a vertical axis through the centre. The crossed system sets in earth\'s magnetic field with magnet having magnetic moment 2M making an angle θ with the magnetic meridian such that

The value of angle of dip is zero at the magnetic equator because on it