1.

The area of cross section of a current carrying conductor is A_(0) and (A_(0))/(4) at section (1) and (2) respectively. If v_(alpha_(1)),v_(alpha_(2)) and E_(1), E_(2) be the drift velocity and electric field at sections 1 and 2 respectively then :

Answer»

`v_(alpha_(1)):v_(alpha_(2))=1:4`
`v_(alpha_(1)):v_(alpha_(2))=4:1`
`E_(1):E_(2)=4:1`
`E_(1):E_(2)=1:4`

ANSWER :A::D


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