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A long wire carrying a current i is bent...

A long wire carrying a current i is bent to form a plane angle alpha`. `Find the magnetic field B at a point on the bisector of this angle situated at a distance x from the vertex. `

A

`(2rmv)/(qmu_0i)`

B

`(2pirmv)/(qmu_0i)`

C

`r`

D

cannot be determine

Text Solution

Verified by Experts

The correct Answer is:
B
(b) `F=qvB=(qvmu_0i)/(2pir)`
`(mv^2)/R=(qvmu_0i)/(2pir) implies (2pirmv)/(qmu_0i)`
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CENGAGE PHYSICS ENGLISH-SOURCES OF MAGNETIC FIELD-Exercise (single Correct )
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