Definitions
What is resistance?
Resistance to current
Formula for the total voltage
Vtotal= V1=V2=...=Vn
Formula for the total current
Itotal = I1=I2=...=In
What is the unit for current?
A
What is current?
The amount of charge flowing
Formula for the total current
Itotal=I1+I2+...+In
Formula for total voltage
Vtotal= V1+V2 +...+Vn
What is the unit for resistance
Ω
What is voltage?
The pressure that drives the charge
Formula for total resistance
Formula for the total resistance
Rtotal = R1+R2+...+Rn
Equation for current
I=V/R
OHM's Law Formula
V=IR
What is a Parallel Circuit?
A closed circuit in which the current divides into two or more paths before recombining to complete the circuit.
As the number of resistors increases, the overall resistance
Increases
How does current flow in a circuit?
From higher to lower potential
What is electric potential energy ?
energy stored by electric charges
If one bulb burns out in a parallel circut what happens to the rest of the bulbs
The bulbs continue to stay lit
If you add another bulb to a series circuit, the lights get
Dimmer
A material electrons can easily travel across