Explain the difference between ohmic and non-ohmic resistances. Give some examples of non-ohmic resistances.
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ohmic means charge in straight line and non ohmic is opposite to ohmic
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The ohmic resistors are those which abide by the ohms law while the non-ohmic resistors do not abide by the ohms law. For the values of current and voltage in a graph for ohmic resistor we will get a straight line and for the non-ohmic resistor we will not get a linear graph. For the ohmic resistor the current being directly proportional to the voltage while for the non-ohmic we do not get such relations.
Examples of the non-ohmic resistors are the semiconductors and for the ohmic there are metals.
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