Where on the earth’s surface is the value of angle of dip maximum?

OR

Where on the surface of earth is the angle of dip 90°?

Where on the earth’s surface is the value of vertical component of earth’s magnetic field zero?

The horizontal component of the earth’s magnetic field at a place is B and angle of dip is 60°. What is the value of vertical component of earth’s magnetic field at equator?

A small magnet is pivoted to move freely in the magnetic meridian. At what place on earth’s surface will the magnet be vertical?

At a place, the horizontal component of earth’s magnetic field is B and angle of dip is 60°. What is the value of horizontal component of the earth’s magnetic field at equator?

A magnetic needle, free to rotate in a vertical plane, orients itself vertically at a certain place on the Earth.

**What are the values of **

(i) horizontal component of **Earth’s magnetic field and **

(ii) angle of dip at this place?

What is the angle of dip at a place where the horizontal and vertical components of the Earth’s magnetic field are equal?

How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equal pieces transverse to length?

A hypothetical bar magnet (AB) is cut into two equal parts. One part is now kept over the other, so that the pole C2 is above C1. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the combination, so formed?

What should be the orientation of a magnetic dipole in a uniform magnetic field so that its potential energy is maximum?

A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has its north tip down at 60° with the horizontal. The horizontal component of the earth’s magnetic field at the place is known at to be 0.4 G. Determine the magnitude of the earth’s magnetic field at the place.

A magnetised needle of magnetic moment 4.8 × 10^–2 J / T is placed at 30° with the direction of uniform magnetic field of magnitude 3 × 10^–2 T. Calculate the torque acting on the needle.

Horizontal component of earth’s magnetic field at a place is √3 times its vertical component. What is the value of angle of dip at that place?

Three students represent the variation of magnetic field B with distance r for a straight infinity long current carrying conductor as

The horizontal component of earth’s magnetic field at a given place is 0.4 × 10^–4 Wb/m^2 and angle of dip is 30°. Calculate the value of (i) Vertical component (ii) Total intensity of earth’s magnetic field.