(i) Find the magnitude of magnetic field inside a long, idealsolenoid of length L, with N turns and carrying current i.Demonstrate your knowledge of Ampere’s Law by constructing anyrelevant Amperian loop and integrating along its length. (ii) Twolong solenoids that are coaxial, each carry current i, but inopposite directions. The inner solenoid with radius a has n1 turnsper unit length, while the outer solenoid with radius b has n2turns per unit length. Now apply the magnetic field expression youjust derived to find the magnetic field inside the innersolenoid.
