Question

• A wire of resistance 20 ohm is bent in the form of a closed circle. What is the effective resistance between the
two points at the end of any diameter of the circle Two wires A and B are of equal lengths, different cross-
sectional areas and made of the same metal.
➢ Name the property which is same for both the wires.
➢ Name the property which is different for both the wires.
➢ If the resistance of wire A is four times the resistance of wire B, calculate
❖ the ratio of the cross-sectional areas of the wires.
❖ the ratio of the radii of the wires.

Answer 1

Answer:

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Explanation:

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