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Give reasons for the following :(i) There is either a convergence or a pergence of magnetic field lines near the ends of a current-carrying straight solenoid.(ii) The current-carrying solenoid when suspended freely rests along a particular direction.(iii) The burnt-out fuse should be replaced by another fuse of identical rating.
(i) There is either a convergence or a divergence of magnetic field lines near the ends of a current-carrying straight solenoid because the strength of the magnetic field is higher near the poles or ends of the solenoid.
Image is posted for reference only
(ii) The current-carrying solenoid when suspended freely rests along a particular direction because it behaves like a bar magnet as it aligns itself in the north-south direction.
(iii) The burnt-out fuse should be replaced by another fuse of identical rating because if a fuse, with a defined rating, is replaced by one with a larger rating then the fuse wire will not burn even when a current greater than the safe limit is flowing. As a result, the electrical circuit or devices will be damaged.
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