6.4 Some useful algebra

Question 1

What is the equation for current relating to drift velocity and what do the letters stand for

Answer 1

I = nAvQ
I = current
n = number of charge carriers
A = cross sectional area
v = drift speed of the charge carriers
Q = charge on each carrier

Question 2

Inserting I = nAvQ into F = BQv gives you what

Answer 2

F = BQv x nAL

Question 3

The force on one charged particle moving at speed v perpendicular to a magnetic field or flux density is

Answer 3

F = BQv

Question 4

How do the charge and mass of an electron affect the sizes of the forces and accelerations

Answer 4

The forces will be very small but the accelerations of the tiny force can be enormous