P4 Flashcards
1
Q
Ohmic conductor graph at constant temperature is…
A
Directly proportional to potential difference.
2
Q
Filament lamp graph is…
A
Current increases the temperature of the filament will also increase, so the resistance increases. The graph will get shallower so a curve us created.
3
Q
Diode graph is…
A
Current will only flow through a diode in one direction. The diode has very high resistance in the reverse direction.
4
Q
Resistance in a series circuit…
A
Adds up so R = R1+R2
5
Q
Cell potential differences…
A
Add up in a series circuit.
6
Q
Parallel circuits potential difference is…
A
The same across all components
7
Q
Parallel circuit current is…
A
Shared between components
8
Q
Adding a resistor in a parallel circuit…
A
Reduces the total resistance
9
Q
Ohmic conductors have a…
A
Constant resistance.
