- #1

wetback

- 5

- 0

## Homework Statement

Problem:

A Solenoid has N turns of Copper wire (Cross-section area of the wire is 10

^{-6}m

^{2}) The Length of the solenoid is 25*10

^{-2}m and its Resistance is 0.5 Ω. What's the Self-Inductance of the solenoid?

## Homework Equations

Given answer: 5.5*10

^{-5}H

Please help me with the solution.

## The Attempt at a Solution

How do you relate Resistance with Self-inductance to eliminate the need for (or find) the number of turns? All I could find by using R was the length of the whole wire(an unrolled solenoid). But this gives me nothing on the number of turns cause the diameter of the solenoid is not given.