in the equation
P= 2m/ ne^2 t
what do these symbols mean?
p - resistor
m - mass of e-
n - ??
e - electron charge>??
t - time between collisions??
In the equation
P = 2m / ne^2t
The symbols represent the following:
P: This symbol represents the resistivity of a material, which measures how much a material opposes the flow of electric current. The unit of resistivity is ohm-meter (Ω⋅m).
m: This symbol represents the mass of an electron, which is a subatomic particle with a negative charge. The electron mass is a constant value, approximately equal to 9.11 x 10^-31 kilograms.
n: This symbol represents the number density of charge carriers in the material. In the context of this equation, it refers to the concentration of electrons in the material.
e: This symbol represents the charge of an electron. The electron charge is a fundamental physical constant, approximately equal to -1.6 x 10^-19 coulombs.
t: This symbol represents the time interval between electron collisions in the material. It refers to the average time it takes for an electron to collide with other particles or obstacles within the material.
Therefore, this equation relates the resistivity of a material (P) to the mass of an electron (m), the number density of charge carriers (n), the square of the electron charge (e^2), and the time interval between electron collisions (t).