Engineering Entrance Exam

There are more than 180 BTech Mechatronics Engineering colleges in India, out of which around 65 colleges accept students on the basis of JEE Main exam scores for admission. You need to work really hard to get an excellent score and rank in the exam to get a seat at top colleges. A few colleges that accept the JEE Main exam scores include Thapar University, LPU, SASTRA University, NIT Patna, and Manipal University (Jaipur).

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Mechatronics Engineering Courses

Magnetic susceptibility (? ) measures in an external magnetic field, how much a material gets magnetized.Paramagnetic materials:? is positive but small.
Diamagnetic materials:? is negative and very small.
Ferromagnetic materials:? is positive and large, often many orders of magnitude greater than 1.

Any bar magnet which is freely suspended aligns itself with the Earth's magnetic field. Earth attract the north pole of the suspended magnet because earth behaves like a giant bar magnet with a magnetic south pole near the geographic North Pole.

The magnetizing force applied to a material is called the Magnetic intensity (H) and the total magnetic effect inside a material is called the magnetic field (B), it includes both the applied magnetic field and the material's response (magnetization).
Following is the formula showing the relation:
B =? (H + M)
Where? is the permeability of free space and M is magnetization.