Q. The correct curve between the magnetic induction ($B$) along the axis of a long solenoid due to current flow $i$ in it and distance $x$ from one end is
A)
B)
C)
D)
Explanation
(a) Magnetic field in the middle of the solenoid is maximum, magnetic field at it’s one end is half of the $M.F$. at the centre
$i.e.\ B_{end} = \frac{1}{2}B_{centre}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.