The V-I graph for a series combination and for a parallel combination of two resistors is as shown in the figure below:
Which one of these represent parallel connection.

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Both A and B

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Cannot be predicted from the graph

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Solution

The correct option is A. A
A is parallel

Reason: Slope of VI graph represents resistance. The effective resistance in parallel is always lesser than that in series. As slope of A is less than that of B , A represents parallel combination.
As we know
$V = I R$
$R_{e q} = \frac{V}{I} = s l o p e o f t h e c u r v e$
$s l o p e o f B > s l o p e o f A$
$R_{e q} o f B > R_{e q} o f A$

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The V-I graph for a series combination and for a parallel combination of two resistors is as shown in the figure below:Which one of these represent parallel connection.

The V-I graph for a series combination and for a parallel combination of two resistors is as shown in the figure below:
Which one of these represent parallel connection.