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Ohm's Law in Vector Form

Variation of ...

Question

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

A

R_{A} = R_{B}

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B

R_{B} > R_{A}

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C

R_{D} > R_{A}

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D

None of these

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Solution

The correct option is D None of these
Using Ohm's law: $R = \frac{V}{i}$
by slope comparision,
$R_{A} > R_{B} > R_{C} > R_{D}$

Hence, option D is correct.

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