sensors & Emfs (electricity) Flashcards
1
Q
R of Thermistor as temp rises
A
R goes down (NTC)
2
Q
R of resistor as temp goes up
A
if it’s a fixed resistor then R stays same
3
Q
R of wire as temp goes up
A
R goes up
4
Q
IV graph for diode
A
5
Q
IV graph for filament lamp
A
6
Q
IV graph for filament thermistor
A
7
Q
power delivered/load resistances
A
8
Q
how to work out share of current on resistors
A
e.g steps 1) for 2 ohm resistor and 4 ohm resistor show 2 A for 2 ohm and 1 A for 4 ohm (as more A to less resistance)
9
Q
formula to remember for Emfs
A
V terminal = V battery −(I×R internal)
