Two part problem. A bent loop is bent at the dotted line so that one segment is

Question

Two part problem.

A bent loop is bent at the dotted line so that one segment is vertical in the y-z plane. To solve this problem, we’ll consider the bent loop breakdown diagram where two fictitious legs are added to create two separate loops. Notice that the two fictitious legs add up to “zero” current. For loop a, number the legs 1 to 4 in a clockwise manner starting with the one on the left. For loop b, number the legs 5 to 8 in a clockwise manner starting with the one on the top.

a.) Find F5, F6, F7, F8 and F5678 = F5+F6+F7+F8.

Really appreciate any help you can provide. Really stuck on this one, thank you.

Explanation / Answer

A rectagular place in a magnetic field on it force is acting F=ilb sin*

here magnetic dipole moment=niA where A is area of the coil

H leg is in the direction of field theta=0    F5=iLBzsin(0)=0

                                                                F7=iLBzsin(0)=0 F6=iLBzsin(90)=iLB

F8=iLBzsin(90)=iLB

F5678=2 xiLB

dipole moment=niA1

dipole moment=niA2

Dipole moment=dipole moment niA1+dipole moment niA2

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