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Question

In the network of resistors shown in the adjoining figure, the equivalent resistance between A and B is
712417_19d52c7b6b4a45158f921c5ba8b98790.png

A
54 ohm
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B
18 ohm
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C
36 ohm
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D
9 ohm
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Solution

The correct option is D 9 ohm
Equivalent resistance of each bridge is, 3+32=3Ω

We have 3 such bridges in series between A and B. So net resistance between AB is,

3×3Ω=9Ω

Option D is correct.

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