Question

what will happen to the resistance of a length of a conductor if both its length and thickness is doubled? any 1 has the answer.!!!

Answer 1

Resistance (R) is inversely proportional to Area(A).

If new wire with double radius is used

So if radius is doubled, new area= 4x Area of original wire.

So the resistance becomes 1/4th of original value.

If the wire is melted to double radius

So radius being doubled means length is compromised.

Doubling radius will change the length of wire to 1/4th.

Then resistance becomes 1/16th of original resistance.

Answer 2

When we will double the Length anD thickness then resistance will also increase
we have ,

Resistance is Directly Proportional to the Lengh and Cross Section of Any Conductor Wire

Hope it will help you

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