The wire shown in the figure, carries a current of `60A`. Determine the magnitude of the magnetic field induction at O. Given radius of the bent coil is `2cm`.

Answer

`1.414 xx 10^(-3) T`

Explanation

Mag. Field at O, `B=int (mu_0)/(4pi)*(idlsin90^@)/(r^2)`
`=(mu_0)/(4pi)(i)/(r^2)intdl=(mu_0)/(4pi)(i)/(r^2)((3pir)/(2))`