Question

Variation of current passing through a conductor as the voltage applied across its ends as varied is shown in the adjoining diagram. If the resistance $\left(R\right)$ is determined at the points $A,B,C$ and $D$, we will find that

(correct answer + 1, wrong answer - 0.25)

• A. $R_C=R_D$
• B. $R_B>R_A$
• C. $R_C>R_B$
• D. None of these

Answer 1

The correct option is D None of these

From the curve it is clear that slopes at points $A,B,C,D$ have following order $A>B>C>D$ and also resistance at any point equals to slope of the $V–i$ curve. So order of resistance at four points will be $R_A>R_B>R_C>R_D$