What is a solenoid? Draw magnetic field lines and give reason to explain that out of the three points A, B and C,
at which point the field strength is maximum and at which point it is minimum
Answers
Answer:
What is a Bar Magnet?
A bar magnet is a rectangular or a square piece of an object made from iron or steel having permanent magnetic properties with two poles: north and south.
What is Solenoid?
A solenoid is a coil with a length greater than its diameter and is a type of electromagnet to produce controlled magnetic fields by passing an electric current through it.
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Permanent Magnets And Magnetic Behaviour
Difference Between Electromagnet and Permanent Magnet
Derivation of Bar Magnet as an Equivalent Solenoid
By calculating the axial field of a finite solenoid carrying current, a bar magnet can be demonstrated as a solenoid. Consider a solenoid of radius a and length 2l with n number of turns per unit length that has current I passing through the solenoid. Considering a small element of thickness dx of the solenoid at distance x from O such that OP = r.
Explanation: