Question

HEYA MATES ❣️❣️❣️

QUESTION : IF THE LENGTH OF WIRE IS DOUBLED BY PULLING IT, FIND THE NEW RESISTANCE. ✔️✔️

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Answer 1

Answer:

It will increased by four times .

Explanation:

Resistance= Resistivity x length/area

A/Q

New Resistance = Resistivity x 2length/area/2

New resistance = (Resistivity x area/length)x4

New resistance = Resistance x 4

So when the wire is stretched, the resistance increased by four times.