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A non - popular loop of conducting wire ...

A non - popular loop of conducting wire carrying a current `I` is placed as shown in the figure . Each of the straighrt sections of the loop is of the length ` 2a`. The magnetic field due to this loop at the point `P(a, 0 ,a)` points in the direction

A

`(1)/sqrt(2) (-hatj +hatk)`

B

`(1)/sqrt(3) (-hatj +hatk+hati)`

C

`(1)/sqrt(3) (hati+ hatj +hatk)`

D

`(1)/sqrt(2) (hati +hatk)`

Text Solution

Verified by Experts

The correct Answer is:
`D`
`B_(xy) =B hatk`
`B_(yz) =B hati`
`oversetrarrB =B (hati +hatk)`
`hatB = (1)/sqrt2 (hati +hatk)`
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