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JEE Main202131 Aug 2021Morning ShiftPhysicsCurrent ElectricityActual

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

Correct answer

0

Step-by-step solution

We know that in a parallel combination of resistors the net resistance, 1 R P = 1 R 1 + 1 R 2 + 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, 3   Ω , then the circuit is, then the net resistance is 3   Ω .

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