Elec 1 Flashcards
Definition of voltage and its units
Energy transferred per coloumb of charge
Unit: Volt, or J/C
What is resistivity
The constant of proportionality for the relationship between resistance and length, and the resistance and cross sectional area
Standard form and full name of the unit u
Micro, x10^-6
Standard form and full name of unit p
x10^-12, Pico
Standard form and full name of unit n
x10^-9, Nano
Resistance if current on y-axis, voltage on x-axis
1/gradient, steeper gradient, lower resistance
Standard form and full name of unit T
x10^12, Tera
Standard form and full name of unit f
x10^-15 Femto
What is Ohm’s law
The P.D. flowing trough a component is directly proportional to the current flowing though it, if external conditions remain condtant
Standard form and full name of the unit G
x10^9 Giga
Standard form and full name of the unit M
x10^6 Mega
Standard form and full name of the unit k
x10^3 Kilo
What is the definition of current and what’s its units
The amount of charge (in coloumbs) passing a point on a circuit each second, measured in amps or C/s
Standard form and full name of the unit m
x10^-3 Milli
Equation for number of electrons
Total charge/charge of one electron