3 ms·
> Imagine negative resisters [sic], for example. That seems like a remarkably nonchalant statement. How should one imagine a "negative resistor"? disclaimer:
by cstavish 14y ago
> Imagine negative resisters [sic], for example.
That seems like a remarkably nonchalant statement. How should one imagine a "negative resistor"?
disclaimer: just got my AP Physics C Elec/Mag score back and it wasn't too pretty.
- TheAmazingIdiot 14y agoI can imagine a negative resistor as a piece of wire that is substituted in a circuit of less resistance than the standard wire. I cannot think what would actually happen if that was to be the case. Perhaps the reflectivity would change in some weird way.
- rrmm 14y agoCheck out a circuit called a 'negative impedance converter'. Gunn and tunnel diodes also exhibit negative differential resistances at some operating points.
- pbhjpbhj 14y agoElectronics is my absolute worst subject but wouldn't it just be a component over which a reducing voltage causes an increasing current flow; presumably that breaks Ohm's law? How to achieve that, vacuum energy!?!?
- pliny 14y agoControlled current source Ic = (-R)*var
- colanderman 14y agoYou can simulate this with an op-amp. It needs energy input though.