A wire of resistance R has it length and cross - section both doubled.
Its resistance will become
A. 0.5R.
B. R.
C. 2R.
D. 4R.
Show Answer
Answer: B
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A wire of resistance R has it length and cross - section both doubled.
Its resistance will become
A. 0.5R.
B. R.
C. 2R.
D. 4R.
Answer: B
Share your understanding of this question with the correct explanation.