Term
|
Definition
If an electric current flows through a conductor in a magnetic field, the magnetic field exerts a transverse force on the moving charge carriers which tends to push them to one side of the conductor. This is most evident in a thin flat conductor as illustrated. A buildup of charge at the sides of the conductors will balance this magnetic influence, producing a measurable voltage between the two sides of the conductor. The presence of this measurable transverse voltage is called the Hall effect. Balance occurs when the perpendicular E = vxB (when there can be no more accumulation)
[image] |
|
|
Term
emf with different B fields |
|
Definition
emfnet=L*I(Bleading-BTrailing) |
|
|
Term
|
Definition
v=u*E, u being the mobility |
|
|
Term
|
Definition
The sum of all the potential differences around a closed loop equals zero. The loop rule is for Conservation of Energy |
|
|
Term
|
Definition
[image]
This refers to the total force on a charge: the electric and magnetic.
When there is no force total, qE=-qvxB. This is very useful. |
|
|
Term
|
Definition
[image]
Where F is the magnetic force, q is a charge, v is the velocity (and direction), and B is the magnetic field (and direction). Keep in mind the cross product.
Another form is F=ILxB, with F, L, and B being vectors. |
|
|
Term
Right Hand Rule for Magnetic Field (2) |
|
Definition
The right hand rule for the magnetic field can refer to two things. In this case, it is for a line of charge. The equation is contained in the picture.
[image]
|
|
|