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Magnetism and Matter
Question
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In what way is the behaviour of a diamagnetic material different from that of a paramagnetic, when kept in an external magnetic field?

Answer

Difference in the behaviour of a diamagnetic material and paramagnetic material:

Diamagnetic Paramagnetic
1. Diamagnetic substance would move towards the weaker region of the magnetic field. 1. Paramagnetic substance move towards the stronger region of the magnetic field.
2. Diamagnetic substance is repelled by a magnet. 2. Paramagnetic substance moves towards the magnet.
3. Diamagnetic substance get aligned perpendicular to the field. 3. Paramagnetic substance get aligned along the magnetic field.

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Some More Questions From Magnetism and Matter Chapter

Answer the following question regarding earth:
 If you made a map of magnetic field lines at Melbourne in Australia, would the lines seem to go into the ground or come out of the ground?

Answer the following question regarding earth:
In which direction would a compass free to move in the vertical plane point to, if located right on the geomagnetic north or south pole?

Answer the following question regarding earth:
Geologists claim that besides the main magnetic N-S poles, there are several local poles on the earth's surface oriented in different directions. How is such a thing possible at all?

Answer the following question:
The earth's magnetic field varies from point to point in space. Does it also change with time? If so, on what time scale does it change appreciably?

Answer the following question:
The earth's core is known to contain iron. Yet geologists do not regard this as a source of the earth's magnetism. Why?

Answer the following question:
The charged currents in the outer conducting regions of the earth's core are thought to be responsible for earth's magnetism. What might be the ‘battery’ (i.e., the source of energy) to sustain these currents?

Answer the following question:
The earth may have even reversed the direction of its field several times during its history of 4 to 5 billion years. How can geologists know about the earth's field in such distant past?

Answer the following question:
The earth’s field departs from its dipole shape substantially at large distances (greater than about 30,000 km). What agencies may be responsible for this distortion?