Question

A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 2.5 T and is directed into the screen of the figure. The length L of the wire is 5 cm and its mass m is 10 g. What current will produce a magnetic force on the wire that is just sufficient to remove the tension in the flexible leads, and which way is the current flowing through the wire? Current-carrying wire suspended from identical flexible leads SB magnetic field (into the screen) Ceiling 1, current-carrying wire L 0.39 A, current flows left to right O 0.39 A, current flows right to left O 0.45 A, current flows left to right O 0.45 A, current flows right to left 0.22 A, current flows left to right

Answer 1