Answer these short questions regarding Magnetic field? a) What does crowding of magnetic lines indicate? b) What is the direction of magnetic field lines outside a bar magnet?
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Explanation:
(i) The direction of magnetic field lines outside a bar-magnet is from north pole to south pole
(ii) Because it would mean that at the point of intersection, the compass needle would point towards two directions which is not possible.
(iii) The crowding of magnetic field lines in a given region indicates that the Strength of magnetic field is higher in that region.
(iv) The alternating current produced in India has a frequency of 50 Hz.
(v) A.C. can be transmitted over long distances without much loss of energy.
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