Give reasons for the following:
(i) There is either a convergence or a divergence 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.
Answers
Answer:
A solenoid is a long coil of wire wrapped in many turns. The magnetic field within a solenoid depends upon the current and density of turns. Its direction depends on the direction of the current.
When a current passes through it, it creates a nearly uniform magnetic field inside or along the axis of the solenoid. Outside the coil or solenoid, that is, at the ends and beyond the magnetic field is small and appears to diverge. This divergence is because the distance from the current carrying solenoid increases.
The distance from the current carrying conductor and the magnetic field are inversely proportional. That is, as distance increases, magnetic field strength decreases
Answer: 1. A solenoid consists of a core with insulated copper wire wound on it consisting of many turns. When current is passed through it, it starts behaving like a bar magnet. As in a bar magnet there is a convergence or divergence near the ends a it moves from north to south pole, similarly there is a convergence/divergence in a solenoid.
2. As reiterated from the above statement, the solenoid behaves like a bar magnet. If we freely suspend a bar magnet, it freely rests along a particular direction by aligning itself to the Earth's poles. In a similar manner, the solenoid also exhibits this property.
3. A burnt out fuse should be replaced by another fuse of identical power rating to prevent any future damage to the circuit. The fuse acts a barrier by melting and breaking the circuit to rpevent any damage when too much current is drawn. However if a fuse is not replaced, then there is a chance that the circuit will get damaged and may catch fire in the future if it draws more current again.
Im not completely sure about all these answers, but mark it as the brainliest. Thanks
Explanation: