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## 1. Two wires – A and B – with circular cross-sections have identical lengths and are made of the same material. Yet, wire A has four times t

Question

1. Two wires – A and B – with circular cross-sections have identical lengths and are made of the same material. Yet, wire A has four times the resistance of wire B. How many times greater is the diameter of wire B than wire A?

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Physics
5 months
2021-08-05T00:53:01+00:00
2021-08-05T00:53:01+00:00 1 Answers
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## Answers ( )

Answer:Diameter of wire B is 2 times the diameter of wire A

Explanation:We have given two wire A and B

They are made up of same material and length of both the wire is sane

So

Let the resistivity of both the wire is

It is given that wire A has 4 times the resistance as wire B

So

So ( As )

So diameter of wire B is 2 times the diameter of wire A