Electric Current Flashcards
1
Q
Electric current
A
Created when a potential difference set up between the ends of a piece of wire cause electrons in wire to drift through wire in net movement of charge
2
Q
Resistance
A
A materials opposition to the flow of electric current, depend on objects material & shape
3
Q
Voltage
A
Creates a current,
Negative charges flow from regions of higher to lower potential
4
Q
Electric circuit
A
Paths along which electrical energy is released
5
Q
Electromotive force, emf
A
The potential difference that drives the flow of charge
6
Q
Power
A
rate at which energy is released
7
Q
Circuit analysis
A
Way to specify current, voltage & power associated with each element in a circuit
8
Q
Resistor
A
Devices that control the current
