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R = V/I = pL/A,, so,if keeping V cons. I is doubled, L and A remains the same, so p should change,, but it doesnt changes.. WHY,?? PLS EXPLAIN IN REFERNCE TO THIS STATEMENT!!!

R = V/I = pL/A,,    so,if keeping V cons. I is doubled, L and A remains the same, so p should change,, but it doesnt changes.. WHY,?? PLS EXPLAIN IN REFERNCE TO THIS STATEMENT!!!

Grade:9

3 Answers

Ronak Jain
16 Points
13 years ago

p Depends only upon The Nature of Material it does not depends upon its Geomety.

 

Please Don't Get Confuse , There is Something Wrong with This Question if i is doubles , V will Also get doubled as V Is Proportional to I.

iit jee
44 Points
13 years ago

hi,

ohms law states that potential difference across a conductor is directly proportional to the current provided the temperature remains constant.so if current doubles (for given conditions)  v cannot remain constant.....

 

plzzzz approve!!!!!!!!!!!!!!!!

 

kedar joshi. 

Yogesh Singh
15 Points
13 years ago
p(rho) depends on the material. If we change the material of the resistor then only p(rho) can be changed. Since I is directly proportional to V. If I is doubled then V also gets doubled, it can't remain unchanged.

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