A rectangular loop of wire with dimensions 2.15cm by 7.54cm and resistance 0.606
ID: 1374289 • Letter: A
Question
A rectangular loop of wire with dimensions 2.15cm by 7.54cm and resistance 0.606? is being pulled to the right out of a region of uniform magnetic field. The magnetic field has magnitude 3.38T and is directed into the plane of the following figure(Figure 1) .
Part A
At the instant when the speed of the loop is 2.92m/s and it is still partially in the field region, what is the magnitude of the force the magnetic field exert on the loop?
Express your answer with the appropriate units.
A rectangular loop of wire with dimensions 2.15cm by 7.54cm and resistance 0.606? is being pulled to the right out of a region of uniform magnetic field. The magnetic field has magnitude 3.38T and is directed into the plane of the following figure(Figure 1) . Part A At the instant when the speed of the loop is 2.92m/s and it is still partially in the field region, what is the magnitude of the force the magnetic field exert on the loop? Express your answer with the appropriate units.Explanation / Answer
We can start with the equation for magnetic force
F = BIL where the top and bottom portions will cancel. We only need the vertical portion of the loop...
I is found from EMF = IR and EMF = BLv
Thus I = BLv/R (sub into BIL)
F = B2L2v/R
F = (3.38)2(.0215)2(2.92)/(.606)
F = .0254 N