The study of electric charges in motion
electrodynamics
What are the two main sources of electric current?
Battery and Generator
What is Battery electric current?
Chemical energy to electrical energy
What is Generator electric current?
mechanical energy to electrical energy
what is potential difference?
what drives/moves electrons
What is the unit of measurement for potential difference?
volts
What are the three main parts of an electric current
1)potential difference 2) current 3) resistance
What is the unit that measures current and resistance?
amp or ampere
What happens to resistance if we increase the length of the conductor?
resistance increases
What happens to resistance if we make the conductor thicker
resistance decreases
What happens to resistance if we decrease the temperature of the conductor?
resistance decreases
State Ohm’s Law ?
(amps)(ohms)=volts
What is the resistance of a superconductor?
none
What is the power formula?
(amps)(volts)=watts
What is the unit of power?
watts
What is the function of capacitor?
Device that stores electricity
