Help on problem 7.24 from Griffiths 3rd edition
- From: oystein.s@xxxxxxxxx
- Date: Thu, 22 May 2008 00:14:00 -0700 (PDT)
Hi! I was hoping that someone would be able to indicate some solution
to problem 7.24 in the book "Introduction to Electrodynamics" by
Griffiths.
The problem is written on page 316 and goes like this:
"An alternating current I0cos(wt) (amplitude 0.5A, frequency 60 Hz)
flows down a straight wire, which runs along the axis of a toroidal
coil with a rectangular cross section (inner radius 1 cm, outer radius
2cm, 1000 turns). The coil is connected to a 500 Ohm resistor.
(a) In the quasistatic approximation, what emf is induced in the
toroid? Find the current Ir(t) in the resistor,
(b) Calculate the back emf in the coil, due to the current Ir(t).
What is the ratio of the amplitudes of this back emf and the direct
emf in (a) ?
Thanks for your help!
Øystein
.
- Prev by Date: Re: Double Slit Puzzle Explained (?)
- Next by Date: Amazing Islam Miracles
- Previous by thread: Double Slit Puzzle Explained (?)
- Next by thread: Amazing Islam Miracles
- Index(es):
Relevant Pages
|
