Six identical resistors each of 10Ω are connected as shown in the figure. The equivalent resistance between points X and Y is :
A
20Ω
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B
5Ω
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C
253Ω
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D
10Ω
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Solution
The correct option is B5Ω
So, above circuit can be redrawn as shown below
Clearly, the above circuit resembles a balanced Wheatstone bridge, so we can remove the resistor in the arm AB
The circuit will further reduce as shown below, ⇓
So, equivalent resistance across points X and Y will be