- #1
uofcphysics
- 2
- 0
The Hall voltage across a 0.800-mm-thick conductor in a 1.30 T magnetic field is 3.2 uV when the current is 12.0 A.
What is the charge carrier denisty in the conductor (in m-3).
I was using the equation Vh=IB/ned
where Vh is the Hall voltage
I is the current
B is the magnetic field
n is the charge-carrier density
e is the charge of an electron
and d is the thickness
I rearranged to get n=IB/Vhed
and evaluated to get 3.806*1025m-3
But this came up wrong on the assignment and it looks like an unreasonable answer. I think I need additional values but basically this entire question is really confusing me.
Thanks for the help!
What is the charge carrier denisty in the conductor (in m-3).
I was using the equation Vh=IB/ned
where Vh is the Hall voltage
I is the current
B is the magnetic field
n is the charge-carrier density
e is the charge of an electron
and d is the thickness
I rearranged to get n=IB/Vhed
and evaluated to get 3.806*1025m-3
But this came up wrong on the assignment and it looks like an unreasonable answer. I think I need additional values but basically this entire question is really confusing me.
Thanks for the help!
Last edited by a moderator: