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Ohm's Law and Resistance

The graph bet...

Question

The graph between V and I for a conductor is a straight line passing through the origin.

(a) Which law is illustrated by such a graph?
(b) What should remain constant in a statement of this law?

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Solution

(a) Ohm's law states that the graph between V and I for a conductor is a straight line passing through the origin.

(b) Ohm's law is true only if the temperature of the conductor is constant.

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