- AWe will have a single pole on each piece.
- BEach piece will have two unlike poles.
- CEach piece will have two like poles.
- DNone of these.
Explanation:
When we break a magnet into two, both act as magnets, that is both have a north and south pole each. In both these pieces the corresponding north and south poles remain on the sides as in the original magnet. This means that the 2 broken sides must get oppositely polarized.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

For a thermocouple, the neutral temperature is 270℃ and the temperature of its cold junction is 20℃. If there is no deflection in the galvanometer, the temperature of the hot junction should be
|
(a) 210 ℃ |
(b) 540 ℃ |
(c) 520 ℃ |
(d) 209 ℃ |
A magnet is placed in iron powder and then taken out, then maximum iron powder is at
|
(a) Some away from north pole |
(b) Some away from south pole |
|
(c) The middle of the magnet |
(d) The end of the magnet |
One requires energy
to remove a nucleon from a nucleus and an energy ‘
to remove an electron from the orbit of an atom. Then
|
(a) |
(b) |
(c) |
(d) |
In an amplitude modulated wave for audio frequency of 500 cycle/second, the appropriate carrier frequency will be
|
(a) 50 cycles/sec |
(b) 100 cycles/sec |
(c) 500 cycles/sec |
(d) 50,000 cycles/sec |