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The ratio of the magnetic field due to a small bar magnet in end on position to broad side on position is :-
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Important Questions on Matter and Magnetism
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The magnetic field at a point X on the axis of a small bar magnet is equal to the field at a point Y on the equator of the same magnet. The ratio of the distances of point X and Y from the centre of the magnet is :-
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If a wire in the earth’s magnetic field carries a current vertically downwards , it is possible to obtain a neutral point :-
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Diamagnetism is the _____ property of every material and it is generated due to mutual interaction between the applied magnetic field and orbital motion of electrons
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How the magnetic susceptibility (xm) of diamagnetic, paramagnetic and feromagnetic substances depends on temperature (T).
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A Rowland ring has turns per unit length. On passing a current of , magnetic induction is measured to be .
Calculate magnetic susceptibility
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A uniform magnetic field gets modified as shown below, when the specimans X and Y are placed in it. Identify the two specimans X and Y
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A uniform magnetic field gets modified as shown below, when the specimans X and Y are placed in it. State the reason for the behaviour of the field lines in X and Y.
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How will a dia-, para- and a ferromagnetic material behave when kept in a non-uniform external magnetic field ? Give two examples of each of these materials. Name two main characteristics of a ferromagnetic material which help us to decide its suitability for making an electromagnet. Which of these two characteristics should have high or low values for each of these two types of magnets ?
