Charge And Current Flashcards
What is current:
The rate of flow of charge around a circuit
What is an electric current:
An electric current is the rate of flow of charge
In the metal wires of a circuit what is the charge carried by:
Electrons
Word equation for current flowing past a point in a circuit for a length of time then the charge that has passed:
Charge = current x time
What do cells and batteries supply:
Direct current
Why can cells and batteries be used in an electrical circuit:
To supply direct current
What is direct current:
Direct current is a current that keeps flowing in the same direction
What does direct current mean:
Means that the charge moves in one direction only
How can you look at a direct current trace:
On an oscilloscope
What is a direct current always like:
Direct current source is always at the same voltage, so you get a straight line
