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JEE Main 2025 (24 Jan, Shift 1) · Combination of Resistors

Combination of Resistors question from JEE Main 2025 (24 Jan, Shift 1)

Q8JEE Main 2025 · 24 JAN · SHIFT 1Easy

Combination of Resistors

A wire of resistance $9\ \Omega$ is bent to form an equilateral triangle. Then the equivalent resistance across any two vertices will be _________ ohm.

Numerical answer type. Work it out, then open the answer.

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Answer: 2

Each side has $\dfrac{9}{3} = 3\ \Omega$ .
Between two vertices: $3\ \Omega$ in parallel with $6\ \Omega$ .
$R_{eq} = \dfrac{3 \times 6}{9} = 2\ \Omega$

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