Define magnetic declination of Earth's magnetic field?

A magnetic field

The earth's magnetic field

What is magnetic field?

What is a magnetic field?

A conducting thick copper rod of length lm carries a current of 15 A and is located on the Earth's equator. There the magnetic flux lines of the Earth's magnetic field are horizontal, with the field of 1.3 xx 10^-4 T , south to north. magnetic and direction of the force on the rod, when it is oriented so that current flows from west to east, are

A magnet 10 cm and having a pole strength of 8 units is deflected through 45^(@) from the magnetic meridian. If the earth's magnetic field is 0.32 oersted, value of the deflecting couple in dynes cm will be

The magnitude of magnetic induction at a point in a magnetic field of area 25 cm and magnetic flux 5xx 10^(-4)Wb is

The torque on a bar magnet due to the earth's magnetic field is maximum when the axis of the magnet is

Write a short note on Earth's magnetic field?

Define magnetic length (2l) for a magnetic dipole ?