Question

20) Two long parallel wires placed side-by-side on a horizontal table carry identical size currents in opposite directions. The wire on your right carries current toward you, and the wire on your left carries current away from you. From your point of view, the magnetic field at the point exactly midway between the two wires A) points away from you B) points up C) is zero. D) points down. ints toward you.

Answer 1

Ans: (D) Points down

Direction of the magnetic field due to a current carrying wire is given by right hand curl rule. With the thumb pointed in the direction of current, the curl of the fingers give the direction of the field.

Using it, we get downward direction.

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