Question

13) Two very long parallel wires carry equal currents in opposite directions as shown in the figure. In which of the finite regions X, Y, and Z will there be a point where the resultant magnetic field due to these two currents is zero? N X Y A) only in X B) only in Y C) only in z D) only in X and Z E) none of the above

Answer 1

Answer is none of these

Means option E is correct

By right hand rule magnetic field direction due to both wire opposite in only x and z region but current is same

B= (mue not×i)/2πd

d is distance from each wire .

So d will not be equal at any point because both wire also separate by some distance

Magnetic field will not be zero in any region

Thank you!