An electric current of I ampere is flowing in a long conductor CG as shown in figure. Find the magnitude and direction of magnetic induction at the centre O of circular part.

An electric current of I ampere is flowing in a long conductor CG as s

1.	An electric current of I ampere is flowing in a long conductor CG as shown in figure. Find the magnitude and direction of magnetic induction at the centre O of circular part.
Answer» Correct Answer - `(mu_0I)/(2r)(1/pi+1)` acting `_\|_r` to loop upwards `vecB_0=vecB_(CG)+vecB_(DEF)` `=(mu_0)/(4pi)(2I)/(r)hatn+(mu_0)/(4pi)(2piI)/(r)hatn=(mu_0I)/(2r)[1/pi+1]hatn` where `hatn` is a unit vector perpendicular to loop upwards.

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An electric current of I ampere is flowing in a long conductor CG as shown in figure. Find the magnitude and direction of magnetic induction at the centre O of circular part.

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