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Grade 12th passElectrostatics

If BCD is semicircle arc in the plane of AB and DE with center at O and radius r and line DB makes angle a with a with DE then find the magnitude of magnetic induction produce at point O

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Simmy

8 Years agoGrade 12th pass

1 Answer

Abhijeet kumar

4 Years ago

WE know for SEMIN INFINITE WIRE we have $\mu i/4\Pi d$ ...therefore it is $\mu i/4\Pi r\sin\alpha$ .. IT IS for one semi infinite wire for 2 semi infinite wire we have to multiply by 2 i.e. $2\mu i/4\Pi r\sin\alpha = \mu i/2\Pi r\sin \alpha$ ....... Now FOR SEMI CIRCLE IT IS $\mu i/4r$ eqn (2) on adding both the magnetic field we get …. $\mu i/2\Pi r\sin \alpha +\mu i/4r= \mu i/4\Pi r\left [ 2\csc \alpha +\Pi \right ]$ ….... since $[1/\sin \alpha =cosec \alpha ]$

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