Question

Area reduces to half and resistance becomes four times the original value​

Answer 1

देसी चाहते हो या जहां चाहते हो हमसे बताओ कि क्या चाहती रहे हो

Answer 2

Answer:

Thanks for requesting. When the wire is stretched to four times the length , the area of cross section gets reduced to half. So when the wire is stretched, the resistance multiplies by sixteen ti