Recent content by Wilfrid Somogyi

Update: I think I've sussed it, though if anyone can verify my mathematics that would be great.

I have found an equation which gives the EMF generated in a coil when a magnet is spun near it, the equation is given as: E = FNAω × 10-8 volts. Where F is the field of the sample perpendicular to the axis of roation, N is the number of turns, A is the effective area of the coil and ω is the...

That does help! Could you explain how exactly it shows the field strength. I've seen setups involving two bar magnets and some kind of suspension but why two and how do you measure the field strength?

The only books I've been able to find are fairly old and are not written very clearly. Would someone be able to put it into A-level terms? I'm not worried about knowing any of the complicated mathematics behind it, only the conceptual side. Although if anyone fancies giving both then that would...

Will do, thanks for all the help!

Right. So in this case the integral S dL (apologies I have no integral sign on my phone) in the equation just becomes L? I'm assuming that as there is thing between the integral and and dL, so the one has been factored out? In which case why not just represent it as L? Or is it not simply the...

I'm an A2-Physics student, studying Maths, Further Maths, Physics and Chemistry. I'm interested by everything really but spend most of my free time learning about Electromagnetism, Relativity and Geophysics.

Thanks, I got most of that, but what do you mean by elemental source? (I'm only an A-level student you see)

I'm trying to understand how to calculate the strength of the magnetic field generated by a current loop. What I know so far is: When a current moves around a loop of wire it generates a magnetic field which looks a bit like that of a solenoid, only not so concentrated through the center of...