# Homework Help: Electromagnetism : Current Induction

1. Oct 20, 2012

### nk_annisa

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

that fig is taken from the book of The Feynman Lectures on Physics. The fig above shows that if the copper disc is rotated (by a hand), there will be induced current, measured by the galvanometer. this engineering principle is the basic principle of a generator. what would happen if the situation changed? so now the bar magnet is the one that rotated (relative to the axis of the magnetic poles: NS). is there still any induced current measured by the galvanometer?

2. Relevant equations

3. The attempt at a solution

I know nothing

Last edited: Oct 21, 2012