36 ms·
As resistors start to heat, their resistance tends to increase, yielding a non-linear relationship between voltage and current. An extreme example of this is t
by ISL 10y ago
As resistors start to heat, their resistance tends to increase, yielding a non-linear relationship between voltage and current.
An extreme example of this is the incandescent light-bulb filament.
- ChuckMcM 10y agoThis is absolutely true, if I drove my little resistor right out of its rated power dissipation spec it would go non-linear and eventually discontinuous :-). Often a visual indicator accompanies this deviation from the datasheet in the form of smoke. I think we all agree though that a negative differential resistance is most simply defined as a negative slope on an I(V) plot for a specified range of V.