A compass is a magnetic dipole. Just as with electric dipoles, magnetic dipoles

Question

A compass is a magnetic dipole. Just as with electric dipoles, magnetic dipoles will feel a torque rotating them so that they points in the direction of the ambient magnetic field that it sees. Use your compass to explore the shape of the magnetic field around the two magnets that you were given at the end of DL-14.

a) We call the north pole of a magnet the part of the magnet from which magnetic field lines leave and the south pole to be the part where the magnetic field lines enter. Does each of your magnets have a north pole? Does each of your magnets have a south pole? Where on the magnet are these poles located?

b) If you bring two south poles close together, what do you observed? What happens if you bring two north poles close together? What about if you bring a south pole near a north pole?

c) Find at least one material that is not a magnet (i.e., a material that does not deflect your compass needle the way your two magnets do) but nonetheless will attract your magnets if you bring them nearby. Record what materials attract your magnet.

Explanation / Answer

a)

each magnet consists of north pole and south pole since monopoles cannot exist alone.on a magnet north and south poles are located at opposite ends.

b)

Like poles repel each other. hence when two south poles are brought close together , they repel each other.

Unlike poles attract each other . hence when norh and south poles are brought close together , they attarct each other.

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