Electricity Flashcards
Force =
Mass*acceleration
Pressure =
Force/area
Work done =
Force*distance
Power =
Charge*voltage
Charge =
Current*time
Voltage =
Work done/charge
Resistance =
Voltage=current
Kirchhoffs first law
Sum of current into a junction is equal to current flowing out of it
Current definition
Rate of flow of charge
EMF definition (electromotive force)
Amount of energy transferred from chemical to electrical for every coulomb of charge
Coulomb definition
Charge that flows past a point in 1 second when the current is 1
P.d definition
Energy transferred to any other form of energy per unit charge
Charge*Voltage =
1/2mv^2
Charge of electron*Volatge =
1/2mv^2
1 volt =
The p.d between 2 points when 1 joule of work is done to move a charge of 1 coulomb