Two wires of equal cross sectional area, one of copper and other of manganin have same resistance. Which one will be longer? (ρmanganin >ρcopper). Give explanation?
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Answered by
1
Answer:
both will have same length
- as resistance is directly proportional to lenth and inversely proportional to area
- and as given resistivity of magnin is more but resistivity donot depend on length and Area ,as it the property of material
Answered by
3
Explanation:
Two wires of equal cross sectional area , one of copper and other of manganin. have same resistance. ... Thus, the copper wire is longer than the manganin wire.
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