एक ओम प्रतिरोध के एक तार को इस प्रकारखींचा जाता है कि उसका व्यास 0.25%परिवर्तित हो जाता है, तो तार के प्रतिरोध मेंप्रतिशत परिवर्तन होगा(A) 2.0%(B)4.0%
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Answer:
4.0 is the answer
Explanation:
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