Question

The magnetic field pattern around a bar magnet is shown in figure given below. This has been traced by using a plotting compass. The magnetic field lines leave the north pole of a magnet and enter its south pole. In other words, each magnetic field line directed from the north pole of a magnet to its south pole. Each field line indicates , at every point on it, the direction of magnetic force that would act on a north pole if it were placed at that point. The strength of magnetic field is indicated by the degree of closeness of the field lines. Where the field lines are closest together, the magnetic field is the strongest.

a. If magnetic field lines are parallel and equidistant ,they represent zero field strength. Comment.
b. The magnetic lines produced by a bar magnet originate and end from which pole?
c. Explain why a freely suspended magnet always points in the north-south direction
plz tell me answer of this question class 10 ch 13 sci​

Answer 1

Explanation:

a. The magnetic field lines that if magnetic field lines are parallel and equidistant then they represent zero field strength because if they are parallel and are at equal distance then they have uniform magnetic field and doesn't have zero magnetic field strength.

b. Magnetic field lines produced by a bar magnet originate from the north pole and end at its south pole.

c. A freely suspended magnet always rests in the north-south direction because the magnetic south pole of the earth lies in the geographic north direction and the magnetic north pole of the earth lies in the geographical south direction.