- #1
Taylor_1989
- 402
- 14
Here is my question: When I look a p.d divider circuit I get slightly confused, because the way I was reading the explanation it says: that when the a thermistors has 0 resistance it has 0V across, so when the resistance increase the voltage increases and the will turn on the base emitter to allow current to flow though a turn on the light for example. So when they say that its 0V do they mean that it has 0V drop across and their is still a current flowing through it as the thermistor is basically acting as a normal part of the circuit?
Say for example I have a 12v supply, and 2 ohm thermistor, and their is 0 resistance on the thermistor, when I apply ohms law and do 12/0 I get a paradox basically the current has disappeared some where. Or is there just 12 Amps flowing through but in that case I would still need a resistance of 1 ohm resistance.
I have left out the other resistor due to simplifying my question to what I don't understand. I do know that any resistor put in a circuit there will be a volt drop across the resistor.
I would appreciate any input available
Say for example I have a 12v supply, and 2 ohm thermistor, and their is 0 resistance on the thermistor, when I apply ohms law and do 12/0 I get a paradox basically the current has disappeared some where. Or is there just 12 Amps flowing through but in that case I would still need a resistance of 1 ohm resistance.
I have left out the other resistor due to simplifying my question to what I don't understand. I do know that any resistor put in a circuit there will be a volt drop across the resistor.
I would appreciate any input available