Drift Velocity Calculator:
Enter the values of Current I(amps), Free Electron Density n(e/m3), Cross-sectional Area A(m2) & Charge q(C) to determine the value of Drift Velocity u(m/s) .
Drift Velocity Formula:
The Drift Velocity u(m/s) in meter per second is equal to the Current I(amps) in amps into divided by the Free Electron Density n(e/m3) in electron per meter cubic and multiply the Cross-sectional Area A(m2) in meter square and again multiply the Charge q(C) in coulomb.
The Formula of Drift Velocity can be writtern as,
u(m/s) = I(amps) / ( n(e/m3) * A(m2) * q(C) )
Here,
u(m/s) = Drift Velocity in meter per second
I(amps) = Current in amps
n(e/m3) = Free Electron Density in electron per meter cubic
A(m2) = Cross-sectional Area in meter square
q(C) = Charge in coulomb
Calculation for Drift Velocity :
1)Determine the Drift Velocity and given for the Current = 6amps , Free Electron Density = 25e/m3 , Cross-sectional Area = 2m2 , Charge = 2C.
Answer
u = I / ( n * A * q )
u = 6 / ( 25 * 2 * 2 )
u = 0.06m/s.
2)Determine the Charge and given for the Current = 6amps , Free Electron Density = 25e/m3 , Cross-sectional Area = 2m2 , Drift Velocity = 0.06m/s.
Answer
u = I / ( n * A * q )
0.06 = 6 / ( 25 * 2 * q )
q = 2coulomb.