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Question
What is an ohmic resistor? Give one example of an ohmic resistor. Draw a graph to show its current voltage relationship. How is the resistance of the resistor determined from this graph?
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Solution
An ohmic resistor is a resistor that obeys Ohm's law.
For example: all metallic conductors (such as silver, aluminium, copper, iron etc.)
From above graph, resistance is determined in the form of a slope.
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