Question

Please anybody answer. CLASS 10 CBSE. ​

Answer 1

Answer:-

(d) Conductor A will have maximum resistance.

Explanation:-

Here in this question, we have given a V-I graph for 4 conductors named A, B, C, and D. We are asked to find which resistor will have the maximum resistance. Before finding resistance, let's understanding what V-I graph actually is.

V-I graph is a graph plotted with respect of current and voltage. The slope of V-I graph gives the resistance of the conductor. V-I graph is used to justify ohm's law.

So let's find the slope (resistance).

It can be justified by using trigonometry.

$\large{\bf Slope= tan \theta=\dfrac I V}$ will give you the slope.

$\large\textbf {When \theta is less, resistance will be maximum. }$

In the given V-I graph, angle made by Conductor A is least, so it's resistance will be maximum.

Hence (d) option is correct.

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