# Question: 1 use amperes law to find the magnetic field outside...

###### Question details

1.
Use Ampere's law to find the magnetic field outside a coaxial cable
(r> b), inner radius a, and outer radius b.

2.
Find the equivalent inductance of two identical ideal solenoids
connected in series if:

l =
0.5,

A =
0.02 m, 2y

N =
300