Consider the situation drawn below. At the instant shown two wire loops are exit
ID: 1367134 • Letter: C
Question
Consider the situation drawn below. At the instant shown two wire loops are exiting a region of uniform magnetic field. The top loop is moving to the left with speed v and the bottom loop is moving to the right also with speed v. The top loop is twice the length and half the width of the bottom loop. The effects of the loops on each other can be ignored.
LINK TO IMAGE:
http://www.colorado.edu/physics/phys2020/phys2020_fa15/Written%20HW/Physics%202020%20HW%207.pdf
***Please answer ALL parts and show/explain ALL of your work for each question. Thank You!
1. At the instant shown, how does the magnetic flux enclosed by each loop compare?
2. At the instant shown, which loop has a larger induced voltage?
3. At the instant shown, for each loop what is the direction of the induced current?
4. At the instant shown, what is the direction of the net force on each loop from the uniform magnetic field? For the top loop justify your answer with the tendency to resist the change in flux. For the bottom loop justify your answer by analyzing the force on each side of the loop; top, bottom, left, right.
5. For this problem, suppose the loops were in the positions shown but both were stationary. Suppose the field is initially 1 T, and it is steadily decreased to 0 T. During the time the field is changing, which loop has a larger induced voltage? What is the direction of induced current in each loop?
Explanation / Answer
Consider the situation drawn below. At the instant shown two wire loops are exit