Show that the magnetic field inside a long solenoid having turns per metre and…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism

Problem

Show that the magnetic field inside a long solenoid having

n

turns per metre and carrying a current

I

2nR

times the magnetic field at the centre of a single-turn circular coil of radius

R

carrying the same current

I