EASY
12th CBSE
IMPORTANT
Earn 100

Explain with the help of diagram (i) magnetic declination and (ii) angle of dip at a place. In what direction will a compass needle point when kept at the equator?

Important Questions on Magnetism

MEDIUM
12th CBSE
IMPORTANT
Name three elements required to specify the earth's magnetic field at a given place. Draw a labelled diagram to define these elements. Explain briefly how these elements are determined to find out the magnetic field at a given place on the surface of Earth.
EASY
12th CBSE
IMPORTANT
Name and define the magnetic elements of earth's magnetic field at a place. Derive an expression for the angle of dip in terms of the horizontal component and the resultant magnetic field of the earth at a given place.
EASY
12th CBSE
IMPORTANT
Define neutral point. Locate the positions of neutral points, when a small bar magnet is placed with its north pole (i) towards the north of the earth and (ii) towards the south of the earth.
EASY
12th CBSE
IMPORTANT
Define neutral point. Locate the positions of neutral points, when a small bar magnet is placed with its north pole towards the south of the earth.
EASY
12th CBSE
IMPORTANT
Sketch the magnetic field pattern of a bar magnet placed in the magnetic meridian with its N-pole pointing north. Show the neutral points. How will you determine the dipole moment of the magnet?
EASY
12th CBSE
IMPORTANT
Define neutral point. Sketch the lines of magnetic field when a small bar magnet is placed with N-pole towards the south of the earth. Indicate the position of neutral points.
EASY
12th CBSE
IMPORTANT
What is "Aurora Borealis" (or northern lights)? Can it be seen in India?
EASY
12th CBSE
IMPORTANT
What is relative permeability of a magnetic material? How is it related to the magnetic susceptibility?