Ohm’s Law & Circuits Chapter 7.2 & 7.3

Flow of Charge Electricity (charge) Flow of electrons Caused by differences in charge Charge will flow from negative to positive end

Electric Current Rate the electrons are moving Measured in amperes (A) Conductors have electrons that are free to move Measured in amperes (A)

Voltage Provides “electric pressure” (force per area) to move electrons between two terminals in a circuit Causes current Measured in volts (V)

Electric Resistance Resists to the flow of charge Measured in Ohms (Ω)

Ohm’s Law Current= voltage resistance The greater the resistance, the less the current The greater the voltage, the greater the current