1. 26 Magnetic Field Force on moving charge/current
Charge motion, Hall Effect
(all sections)

2. Magnetic Field
SI Unit: Tesla

3. Force - Right Hand Rule

4. Example Forces

5. Force on Current

6. cyclotron period

7. velocity selector

8. definition n

9. force on loop

10. Hall Effect
charges in current are forced to One Side of a (flat) wire due to FB.
measure voltage due to this force
correlate the V with the B

11. Hall Voltage determines the sign of the net charge motion.
Positive carriers
Negative carriers

12. Size of B effects Voltage Observed
(Stasis)
d = width = w
v = vd = drift velocity
This is called the “Hall Voltage” VH.

13. Carrier Density (n) and Hall Voltage Equations
Recall that n = #carriers per unit volume
and that

14. Problems