Electron Gain Calculation  

Example:
Calculate the drift velocity for the given details.
Flow of current (I) = 20
Number of electrons (n) = 30
Cross section of area of wire (A) = 15
Charge of electron (Q) = 10
Solution:
Apply Formula:
V = I /(n*Q*A)
V = 20/(30*15*10)
V = 20/ 4500
V = 0.0055555555
Drift velocity V) = 0.0055555555