4.7.1 Permanent and Induced Magnetism, Magnetic Forces and Fields Flashcards
1
Q
How do you increase the strength of an electromagnet?
A
Increase number of coils, increase current/PD, add an iron core.
2
Q
How do you make an induced magnet?
A
Stroke a magnetic material with a permanent magnet from one side to the other,
3
Q
Where is the field around a magnet the strongest and why?
A
At the poles because the field lines are closer together.
