A square-shaped wire with a resistance of each side 3Ω is bent to form a complete circle. The resistance between two diametrically opposite points of the circle in a unit of Ω will is, _____.

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We know that in a parallel combination of resistors the net resistance, $\frac{1}{R _{P}} = \frac{1}{R _{1}} + \frac{1}{R _{2}} + \frac{1}{R _{3}} + ....$ and when they are connected in series then net resistance is, $R = R_{1} + R_{2} + R_{3} + ...... + R_{n}$ . A square-shaped wire with a resistance of each side is, $3Ω$ , then the circuit is,

then the net resistance is $3Ω$ .

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