Magnets: no doubt, its behaviour will attract everyone. The world enjoys its benefits, to lead a...
Magnets: no doubt, its behaviour will attract everyone. The world enjoys its benefits, to lead a modern luxurious life. The study of magnets fascinated scientists around our globe for many centuries and even now, door for research on magnets is still open. The needle in a magnetic compass or freely suspended magnet comes to rest in a position which is approximately along the geographical north-south direction of the Earth. William Gilbert in 1600 proposed that Earth itself behaves like a gigantic powerful bar magnet. Goven suggested that the Earth's magnetic field is due to hot rays coming out from the Sun. These rays will heat up the air near equatorial region- once air becomes hotter, it rises above and will move towards northern and southern hemispheres and get electrified. This may be responsible to magnetize the ferromagnetic materials near the Earth's the surface. Till date so many theories completely explains the cause for the Earth's magnetism.
Due to earth's magnetic field, the charged cosmic ray particles
(A) require greater kinetic energy to reach the equator than pole
(B) require less kinetic energy to reach the equator than pole
(C) can never reach the pole
(D) can never reach the equator.
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