Four Hideously Important Current-Voltage Graphs Flashcards
1
Q
What do current-voltage graphs do?
A
How the current varies as you change the voltage
2
Q
Wire
A
The current though a wire (at constant temperature) is proportional to voltage
3
Q
Different resistors
A
The current though a resistor (at constant temperature) is proportional to voltage. Different resistors have different resistances, hence the different slopes
4
Q
Metal filament lamp
A
As the temperature of the metal filament increases, the resistance increases, hence the curve
5
Q
Diode
A
Current will only flow through a diode in one direction, as shown
