im at sixth form, so just before university. i do a fair bit of calculus, mainly single variable. I know about lenz's law and faraday's law, induction and all that, and that they have some relevence, I just don't see how they can be used for calculations to get numerical answers in this context...
For my physics practical coursework I investigated how the rate of revolution of the permanent magnet in an eddy-current speedometer affects the turning force induced in the metal cup or plate.
I got the results I expected, and I am required to prove them using appropriate equations and...