Help w/ electromagnetism?
A square loop of wire with side length of 0.50m is in a uniform magnetic field of 0.30T, as shown in the figure below. If a current of 2A flows clockwise through the loop, describe the direction of the force experienced by each side of the loop. 1) top, 2) right, 3)bottom, 4) left

Question

Help w/ electromagnetism?
A square loop of wire with side length of 0.50m is in a uniform magnetic field of 0.30T, as shown in the figure below. If a current of 2A flows clockwise through the loop, describe the direction of the force experienced by each side of the loop. 1) top, 2) right, 3)bottom, 4) left

anonymous · Answer

|dw:1396333842027:dw|

anonymous · Answer

$$F= I(dL \times B)$$  
A cross product $$A \times B$$ Can be written as $$|A|.|B| \sin \theta$$ where $$\theta$$
is the angle between these two vectors! go on to find out the angle of the length vectors of sides with the magnetic field and you'll get it!

anonymous · Answer

Erm......... If I is 2A, B is 0.30, and L is 0.5...... I'm not sure how I would get the pheta?

anonymous · Answer

And even if I got the pheta, I don't understand how to get the length vectors and then get the direction..