### Electricity and Magnetism

# Inductance of a Solenoid

Problem by Herry Kwee

30 Nov 1999 00:00 WIB

A near-ideal solenoid of length l, cross-sectional area A and total number of turns N is carrying a current I. Assume $$(l>>\sqrt{A})$$

a. What is the magnetic field strength at the center of the solenoid?

b. What is the magnetic field strength at the the end of the solenoid?

c. Calculate the solenoid self-inductance L.

d. How much work is required to establish a current I through the solenoid?