1.

When a current I is passed through a wire of constant resistance, it produces a potential difference V across its ends. The graph drawn log I and log V will be  

Answer»

Correct option (1)

Explanation:

V = I R Taking log both sides

log V = log I + log R

log I = log V - log R

This equation represents a straight line which cuts log V axis and slope is +ve. 



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