Describes magnetism and its relationship to electricity. **More good stuff available at: www.wsautter.com and http://www.youtube.com/results?search_query=wnsautter&aq=f

1. W. Sautter 2015

2. N
+
Fingers = magnetic flux
lines North to South
Thumb = direction
of + charge
Motion (current)
Palm = force
Exerted on
The charge
Centripetal force
On charge caused
By magnetic field
Charge moves in a circular path 2

3. 3

4. N (magnet) S
By convention (everybody agrees) lines of magnetic
Flux leave the North pole and enter the South pole
Lines of flux are continuous and do not intersect each other.
4

5. 5

6. LENZ’S LAW
When a magnet induces a current flow in a conductor, the induced
current flows in a direction so as to create a magnetic field in the
conductor that opposes the original magnet field
Conductor
Wire
loop
Using the Right Hand Rule 6

7. Direction of conventional
current flow (fingers)
North end of
Induced Magnetic
Field (thumb)
7

8. 8
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