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mikael mikael
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Posts: 12017
10 years ago
If the length and diameter of a wire of circular cross section are both doubled, the resistance is 
A) unchanged. 
B) doubled. 
C) increased fourfold. 
D) halved. 
E) None of these are true. 
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wrote...
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10 years ago
D) halved.
mikael Author
wrote...
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10 years ago
Thank you.
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