Using Ampere's circutial law, obtain the expression for the magnetic field due to a long solenoid a point inside the solenoid on its axis

CBSE Class 12 CBSE Class 12 Physics
,
1

(a) Using Ampere’s circutial law, obtain the expression for the magnetic field due to a long solenoid a point inside the solenoid on its axis.
(b) In what respect is a toroid different from a solenoid ? Draw and compare the pattern of the magnetic field lines in the two cases.
© How is the magnetic field inside a given solenoid made strong ?

2


Using Ampere's circutial law, obtain the expression for the magnetic field due to a long solenoid a point inside the solenoid on its axis.png486×588 216 KB

© Strengthing of magnetic field :
• By inserting a ferromagnetic substance inside the solenoid
• By increasing the amount of current through the solenoid.