Practical 12 - Investigation of magnetic flux density using a hall probe

Question 1

How does a Hall probe work?

Answer 1

By measuring the potential difference of deflected charge carrier flow in a semiconductor chip

Question 2

Relationship between the potential difference and the magnetic flux density (magnetic field strength)

Answer 2

Directly proportional

Question 3

Under which circumstance is the potential difference proportional to the magnetic field flux density (magnetic field strength)?

Answer 3

When the current flowing through the chip is constant

Question 4

Which forces are equal when equilibrium has been reached?

Answer 4

The force due to the electric field = force due to the magnetic field

Question 5

Equation to show the relationship between the force due to the electric field and the force due to the magnetic field once equilibrium has been reached

Answer 5

Ee = BeV
v/d x e = BeV