Ohmic Conductors are
conductors that obey ohm's law. Therefore, the current is directly potential to
the potential difference.
Image Source: A-level Physics |
FILAMENT LAMP
When the
filament heats up as a result of increase in voltage, the temperature increases
and as the temperature increase the resistance will increase thereby giving it
a non-ohmic characteristics as shown below;
Image source: Cyberphysics |
A diode
only allows current to flow in one direction through it (forward biased), when
the current tries to flow the other way (reverse biased) no current is allowed
to flow through the diode. Therefore a diode did not obeys ohms law as shown below.
Image Source: sciencehq.com |
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