If the direction of the magnetic field were into the page, the wire would move u
ID: 1445409 • Letter: I
Question
If the direction of the magnetic field were into the page, the wire would move up to a new equilibrium position.
If the current direction were reversed from that shown on the diagram, the wire would move down to a new equilibrium position.
For the situation depicted in the diagram, the wire will move up to a new equilibrium position.
If the direction of the magnetic field were parallel to the current in the wire of length L, the wire would move out of the page to a new equilibrium position.
If the direction of the magnetic field were down (in the plane of the page), the wire would move into the page to a new equilibrium position.
10. [1pt]
Assume the situation shown in the diagram, with L = 0.300 m, I = 0.480 A, B = 8.25 T (out of the page), and k = 0.855 N/m for each spring.
How far will the wire move to reach its new equilibrium position if the current is turned on?
Explanation / Answer
T
T
F or C, i will go with F
F
T
the concept used in solving above sttements is F =iL x B
In first and second statements the direction of F changes so spring state changes from expansion to compression.
In third case, nothibg will happen, as the spring will be in elongated length and magnetic force will act downward.
in forth case, magnetic force will be zero, so spring will move to an equilibrium of relaxed length but not out of the page.
In fifth case magnetic force will be into the page
10) spring force will be balanced by magnetic force
2 kX = iL B
2 × 0.855 X= 0.480 ×0.300 ×8.25
x = 0.695 m
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