Answer to Question #115298 in Optics for Vidurjah Perananthan

Question

A straight conductor is located in a homogeneous magnetic field of limited extent as shown in the figure below. Determine the magnetic force acting on the conductor if the current through the conductor I = 3.5 A and the flow density B = 0.10

Answer 1

The magnetic force acting on the conductor

$F=I\cdot B\cdot l\cdot\sin \alpha$

Assume that $l=1 m$ and $\alpha=30°$. So

$F=I\cdot B\cdot l\cdot\sin \alpha=3.5\cdot 0.1\cdot 1\cdot \sin30°=0.175 N$