FIGURE 27-10 -A Horizontal, Long Current-Carrying Wire Is Hanging from a Vertical

Multiple Choice

FIGURE 27-10
-A horizontal, long current-carrying wire is hanging from a vertical thread. The current is oriented into the plane of Fig. 27-10 shown above. A uniform magnetic field B = 0.4 T is applied along the negative y-axis and the wire is pulled and angle θ away from the vertical by a magnetic force. The wire has a length L = 80 cm, a mass m = 50 g and carries a current I = 0.3A. What is the value of the angle θ?

A) 25°
B) 67°
C) 3°
D) 45°
E) 11°