What is a solenoid? Draw the pattern of magnetic field lines of (i) A Current carrying solenoid. (ii) A bar magnet. List two distinguishing feature between the two fields.
Answers
•a cylindrical coil of wire acting as a magnet when carrying electric current.
1) A solenoid is a tightly wound helical coil of wire whose diameter is small compared to its length. The magnetic field generated in the centre, or core, of a current carrying solenoid is essentially uniform, and is directed along the axis of the solenoid. Outside the solenoid, the magnetic field is far weaker.
2) A bar magnet is the simplest form of magnets which is rectangular in shape and has a magnetic field around it. It is usually made of ferromagnetic materials (elements that have naturally magnetic fields like cobalt, iron and nickel). The bar magnet is also known as Permanent.
Answer:
What is a solenoid? Draw the patterns of the magnetic field lines of (i) a current carrying solenoid
(ii) a bar magnet. List two distinguishing features between two fields?
Explanation: