Current Electricity

Question	Answer
What is electrical charge?	The flow of electrons/current
What is potential difference?	Energy transferred per coulomb of charge passing through a component
Give the unit for charge	Coulombs, C
Give the unit for power	Watts, W
Give the unit for current	Amps, A
Give the unit for resistance	Ohms, Ω
How is potential difference shown in series and parallel circuits?	Series: Potential difference is shared between components Parallel: Potential difference is the same through each component
How is current shown in series and parallel circuits?	Series: Current is the same throughout the circuit Parallel: Current is different in different branches
Why does a current-potential difference graph for a diode stay at 0 for negative readings?	Diodes only allow current to flow in one direction
Describe a current-potential difference graph for a resistor	A straight, linear line for both positive and negative readings
Describe a current-potential difference graph for a lamp	A slanted S shape

Resource summary

	Created by Sarah Collinson over 9 years ago