Coulombs Law
Force between charges
Electrical Field
Force per unit charge that would act on a positive test charge q placed at that time.
Magnitude of an electrical field a distance r from point charge Q.
Electric Potential (V)
Change in Electric Potential
Potential Difference between two points
Electric Current
I, measured in Amperes (C/s)
Battery
Turns chemical energy into electrical energy
Resistance
R, measured in Ohms, V/I
Power
I*V, for resistors, V^2/R
Watt
Measurement for power, J/s
KWH
3.6 x 10^6 J
AC
Alternating current, current reverses direction at a certain frequency.
DC
Steady current in one direction.
Resistors in series?
Sum of each resistor (R1 + R2 + R3 …)
Resistors in parallel?
1/r1+ 1/r2 + 1/r3…
who is the best
will
induction
transferring charge w/out contact
conduction
transferring charge w/contact
what is “k”
what is “e”
electron charge