Question

a current carrying wire doesn't tend to rotate in a magnetic field. what do you conclude from it​

Answer 1

This means that the magnetic feild is applying no force on the wire now the force of magnetic feild is given by qvbsin(theta) if F is zero ie sin(theta ) is zero

Now if sin(theta) is zero ie the rod is parallel to magnetic feild

Answer 2

This makes me conclude that the wire is parallel to the magnetic field since that would make the flux zero