Explain the distinction between an ohmic and non-ohmic material, in terms of how

Question

Explain the distinction between an ohmic and non-ohmic material, in terms of how the current and resistance behave as the voltage difference across the material is changed.

Now, imagine a single-loop circuit with a battery, two wires, and a 10 Ohm resistor. The wires are also ohmic, but with a resistance much smaller than the 10 Ohm resistor. Despite the disparity in resistance, the current in the wire is the same as that through the resistor since they are in series. Using Ohm's Law, explain how this uniformity in current relates to (or arises from) the individual potential differences across the wire and resistor.

Explanation / Answer

The difference between ohmic and non ohmic materilqa can be explained by understanding the Ohm's law. According to Ohm's law current in a circuit is proportional to the amount of voltage in the circuit if external conditions like temperature, pressure remains constant. Because of this proportionality, when voltage and current are plotted on a graph, their relationship is linear.

An ohmic resistor also has this linear relationship if its current and voltage are graphed, so we can say that ohmic material are those materials which satisfy Ohm's law. in other terms if resistance of material does not change with the variation in voltage then we say that material is ohmic.

and its opposite is non-ohmic i.e. they have an irregular graph(non- linear) graph between current and voltage, so they do not satisfy Ohm's law. in other terms if resistance of material change with the variation in voltage then we say that material is non-ohmic.

let us say that wire has resistance r (<<10 ohms) and current in both is same i.e. i.

Now according to Ohm's law, the voltage across resistor is 10i and voltage across wire is ri

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