Solvethe follwing example .A currentthrougha horizontalpowerline flows in east to westdirection .Whatis the directionof magneticfieldat a point directlybelowit andat a pointdirectly aboveit ?

Solvethe follwing example .A currentthrougha horizontalpowerline flows

1.	Solvethe follwing example .A currentthrougha horizontalpowerline flows in east to westdirection .Whatis the directionof magneticfieldat a point directlybelowit andat a pointdirectly aboveit ?
Answer» SOLUTION :The CURRENTIS in the east - westdirection . Applyingthe right - handthumbrule , weget that the magneticfield ( at any point belowor abovethe wire ) turnsclockwiseina planeperpendicular to the wire, whenviwedfrom theeast end ,andanticlcokwise, whenview fromthe west end . Hence, at a pointdirectly abovethe horizontalpower line , the magnetic FIELD Bpoints in the northdirectionand atpointdirectly belowit , magneticfieldB POINTIN the SOUTHDIRECTION.