Lesson 2 Electric Current Flashcards
The energy of electric charges
Electrical energy
The rate of flow of electric charges
Electric current
Electric current is expressed in these units
Amperes or amps
A kind of electric current in which charges flow in the same direction
Direct current
A kind of electric current in which charges repeatedly shift from flowing in one direction to flowing in a reverse direction
Alternating current
The amount of work required to move each unit of charge between two points.
Voltage
Another name for voltage because it is a measure of electrical potential energy per unit charge.
Electrical potential
The opposition to the flow of electric charge
Resistance
A complete closed path through which electric charges can flow.
Electric circuit
Electric charges have more than one path that the can flow
Parallel circuit