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Combination of Resistors

Four identica...

Question

Four identical wires each having resistance $R$ are connected as shown in the figure. Equivalent resistance between A and B is:

A

\frac{R}{4}

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B

\frac{R}{2}

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C

4 R

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D

R

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Solution

The correct option is C $4 R$
Simplified circuit is drawn. It is the series combination of the four resistances.
$R_{A B} = 4 R$

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