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A current of I ampere is flowing through...

A current of I ampere is flowing throught each of the bent wires as shown the magnitued and the bent wires as shown the magnitude the diection of magnetic field ot `O` is
.

A

`((mu_(0)i)/(4))((1)/(R) + (2)/(R'))`

B

`((mu_(0)i)/(4))((1)/(R) + (3)/(R'))`

C

`((mu_(0)i)/(8))((1)/(R) + (3)/(2R'))`

D

`((mu_(0)i)/(8))((1)/(R) + (3)/(R'))`

Text Solution

Verified by Experts

The correct Answer is:
D
`B =(mu)/(4pi)(I)/(R) xx (pi)/(2) + (mu_(0))/(R') xx (3pi)/(2) `
`=(mu_(0)I)/(8) ((1)/(R)+(3)/(R'))`
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