Hall Effect
Turn to Page 159 in your workbook.
You may work in groups of 4 or less.
Complete parts (a) through (j)
Record your group's answers on ONE answer sheet (sub will pass out).
Hint for (a)
Refer to the equation sheet for the "resistance" equation.
rho is resisitivity
Hint for (b)
Positive charges move in the direction of the electric field.
Hint for (c)
The electric field can considered to be uniform.
Hint for (d)
You will need two equations.
Hint for (e)
Right hand positive.
Left hand negative.
Hint for (f)
i = nqAv (see your flowchart)
i = current
n = free electron density
q = charge on an electron
v = drift velocity
pay attention to units.
Hint for (g)
We derived this equation in your workbook.
Hint for (h)
Watch this video. You may have to turn wifi off.
https://www.youtube.com/watch?v=Scpi91e1JKc (no sound needed)
For a more in-depth video
https://www.youtube.com/watch?v=FLWcJQhqsvc (sound is needed)
Hint for (i)
The hall voltage generates a uniform electric field.
Hint for (j)
Sorry no hints.
David Carroll
www.GravityKills.net