Lesson 2 Electric Current Flashcards
(10 cards)
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