# Homework Help: Transmission question

1. Aug 3, 2010

1. The problem statement, all variables and given/known data

a transmission line has a length l of 0.4lambda. find the phase change Bl that occurs down the line.

2. Relevant equations

B x lambda= 2pi

3. The attempt at a solution
now here is my problem i am genuinely not sure where to go with this.i dont want this answered for me that is not the idea of the forum but the next step to get me going on this would be appreciated, i can then post my answer for checking?anyone assist please?

2. Aug 3, 2010

### Staff: Mentor

What's B? Is it theta? $$\Theta$$

And they want to know the phase difference across 0.4 of the wavelength? Do they want it in degrees or radians?

EDIT -- BTW, I got the greek character from the Latex menu on the upper right part of the Advanced Edit/Reply page.

3. Aug 3, 2010