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In Physics / High School | 2014-08-12

A resistance of 10 ohms is bent in the form of a closed circle. What is the effective resistance between the two points of any diameter of this circle?

Asked by PrincessManshi

Answer (3)

Verrrry interesting question, your Highness.
If you measure between the ends of any diameter, then half of the circle is on one side of those points, and half of it is on the other side of them. You are measuring the effective resistance of 2 halves of the resistance, in parallel. So the effective resistance is 1/4 of the conductor's total resistance . . . 2.5 ohms.

Answered by AL2006 | 2024-06-10

so circumference is 10 cm . 2 divisions is the radius . thats it :)

Answered by Anonymous | 2024-06-10

The effective resistance between two points on a diameter of a closed circular resistance of 10 ohms is calculated to be 2.5 ohms. This is because the resistance can be viewed as two halves, each of 5 ohms, connected in parallel. Thus, the total effective resistance is decreased to 2.5 ohms.
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Answered by AL2006 | 2025-06-19

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