Lorentz Force

Question 1

What is Lorentz force

Answer 1

when conductor Na is placed in the magnetic field of current Nf, it experiences a force called Lorentz force

Question 2

lorentz force formula

Answer 2

F = Na x (Bf* IA * L)

F = lorentz force (N)
Na = number of conductors
Bf = flux density of Nf (T or Wb/m^2)
IA = current through Na
L = length of conductor in magnetic field

Question 3

Using previous formulas what is Bf (formula sheet)

Answer 3

Bf = uruoHf = uruo( (Nf x If) / 2Pir)

Question 4

Using these 2 formulas what is F (formula sheet)

Answer 4

F = ur(2 x 10^-7) * ((NfNal)/r) * IA * If

Question 5

What does these 3 formulas show about the lorentz force

Answer 5

directly proportional to Ia and If
directly proportional to Na and Nf
directly proportional to L
inversely proportional to distance r

Question 6

how to find direction of lorentz force

Answer 6

Fleming Left hand rule

thumb = force (motion)
index finger = magnetic field
second finger current

Question 7

How do we create motion (force) in a motor

Answer 7

current in a magnetic field leads to motion

Question 8

How to create a generator

Answer 8

force (motion) in a magnetic field leads to a current