Assertion : Current in wire-1 is in the direction as shown in figure. The bottom wire is fixed. To keep the upper wire stationary, current in it should be in opposite direction.
Reason : Under the above condition, equilibrium of upper wire is stable.

Options

A. If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C. If Assertion is true, but the Reason is false.
D. If Assertion is false but the Reason is true.

Answer

B

Explanation

To balance the wieght foce on upper wire should be upwrds (repulsion). Further equilibrium can be checked by displacig the wire from equilibrium position.