Q.No.179: - A wire lying perpendicular to an external magnetic field carries of a current in the direction shown in the diagram below. In what direction will the wire move due to the resulting magnetic force? (sorry for diagram.)

Q.No.179: - A wire lying perpendicular to an external magnetic field carries of a current in the direction shown in the diagram below. In what direction will the wire move due to the resulting magnetic force? (sorry for diagram.)

Q.No.179: - A wire lying perpendicular to an external magnetic field the magnetic field is along positive x-axis. The wire carrying a current in the direction along positive y-axis. In what direction will the wire move due to the resulting magnetic force?

Ans: - Apply Fleming Left hand rule first finger shows the direction of magnetic field and second finger shows the direction of current and the erected thumb shows the direction of force exerted by magnetic field. So in this case the force will exert in the negative z-axis.

(The direction in the figure below is opposite to that of question that’s why the direction of force will also be opposite i.e., in the downward direction.)