Electrical Charge And Current Flashcards
1
Q
What is current?
A
The rate of flow of charge in a circuit
2
Q
What is potential difference/voltage?
A
The difference in potential between two points of a circuit, which causes a current to flow
3
Q
What is resistance?
A
Anything that slows the flow of charge around the circuit. Resistance is usually caused by electrons colliding with ions in a material.
4
Q
What is a series circuit?
A
A circuit with a single loop of wire
5
Q
What is a parallel circuit?
A
A circuit with two or more loops of wire
6
Q
What is an electric current?
A
An electric current is the flow of electrical charge, usually electrons, around a circuit
7
Q
How to calculate charge flow in a circuit? (Include units)
A
Q = I x t
Charge flow = current x time
Coulombs = Amps x Seconds
