Question

why does a magnetic compass needle pointing north and south in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. describe some salient features of magnetic lines of field concept.

Answer 1

Hello ,

******

because in compass needle is made up of metal that's why Needle deflected when bar magnet or a current carrying loop is brought near it


features of magnetic field lines are as follows :-

# magnetic field lines are imaginary lines used to show magnetic field

# these are closed continuous curves

# when magnetic field lines closer in the region where Magnetic field strong

# Magnetic field lines do not intersect each other

# the direction of magnetic field lines is from south pole to north pole

*****

mark me as a brainlist and follow me plzzzzz

Answer 2

Answer:

Explanation:

Current-carrying loops behave like a bar magnet.

Both a bar magnet and current-carrying loop have a magnetic around them. It is due to this magnetic field that the  magnetic compass placed nearby gets deflected.

Characteristic properties of magnetic field lines :-

• Magnetic field lines start at a north pole and end at south pole.
• Magnetic field do not intersect each other because their can't be two directions of the magnetic field at any one point.
• The degree of closeness of the field lines depends upon the strength of the magnetic field. Stronger the field, closer are the field lines.

Since, the magnetic field is stronger near the poles, the magnetic field lines are closer near the poles.