Electrical Engineers

Need bit of help with the exam ive got to sit to pass my first year of uni, dont understand a lot of the work so a little screwed!! Appreciate it if someone could have a look at this and give me a helpin hand. Cheers.

- 300 turns wire wound around annular iron ring, mean radius 30mm, cross section area 20x20mm2. current in coil 0.5A @ 50hz. relative permeability of iron is 500. mu0 (greek letter) = 4 pi e-7.

- find magnetic flux
- induced voltage
- self inductance

Please move to realavent forum, if there is one, and thanks again.

Need bit of help with the exam ive got to sit to pass my first year of uni, dont understand a lot of the work so a little screwed!! Appreciate it if someone could have a look at this and give me a helpin hand. Cheers.

- 300 turns wire wound around annular iron ring, mean radius 30mm, cross section area 20x20mm2. current in coil 0.5A @ 50hz. relative permeability of iron is 500. mu0 (greek letter) = 4 pi e-7.

- find magnetic flux
- induced voltage
- self inductance

Please move to realavent forum, if there is one, and thanks again.

Um... can't you just get out one of your text-books and find the section that explains how to do it?

ive been looking at it all evening and its not helping.

This may give you the information to kick your memory up a notch or two. http://www.consult-cpr.com/Additional%20Pages/Eng%20LinksB6.html

I'm a Mechanical Engineer and I remember doing that in first trimester Engineering science at college, I don't remember how to do it but I do remember it was easy. :redface: