The solenoid is a long coil containing a large number of close turns of insulated copper wire.
The magnetic field produced by a current carrying solenoid is similar to the magnetic field produced by a bar magnet.
 |
| Magnetic Field due to a Solenoid |
The magnetic field line inside the solenoid are in the form of parallel straight line.
This indicate that the strength of magnetic field is the same at the all the point inside the solenoid.
The strength of magnetic field is the same at all the point inside the solenoid.
The magnetic field is uniform inside a current carrying solenoid.
If a current carrying solenoid is suspendedly freely it will come to rest pointing in the north and south direction just like a freely suspended bar magnet.
The end of solenoid which will be repelled by north pole of bar magnet will be its North pole and the end of solenoid which will be attracted by the north pole apar magnet will be its south pole.
The strength of magnetic field produced by current carrying solenoid depends upon :
The number of turns in the solenoid : large the number of turns in the solenoid greater will be the magnetism produced.
The strength of current in the solenoid : larger the current passed through solenoid stronger will be the Magnetic field produced.
The nature of core material used in making solenoid the use of soft iron rod as core in a solenoid produce the strongest magnetism.