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Grade upto college level IIT JEE Entrance Exam

Two equal electric currents are flowing perpendicular to each other as shown in the figure. AB and CD are perpendicular to each other and symmetrically placed with respect to the current flow. Where do we expect the resultant magnetic field to be zero?

/

(a) on AB

(b) on CD

(c) on both AB and CD

(d) on both OD and BO

Profile image of Amit Saxena
12 Years agoGrade upto college level
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1 Answer

Profile image of Kevin Nash
12 Years ago

(a)

 

Net magnetic field on AB is zero because magnetic field due to both current carrying wires is equal in magnitude but opposite in direction.

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