A wire has resistivity 'p'.what will be the new value of resistivity if its length is doubled and cross section area is halved?
1). p/2
2). 2p
3). p
4). 4p
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Answer:
it is 4p
Explanation:
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Answer:
as resistivity depends on the temperature and material so resistivity remain constant means ur answer is p only it is correct ans.
Explanation:
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