Question 1 If the coil is initially at rest between positions (a) and (b), will it tend to start turning? If so, will the rotation be counterclockwise or clockwise? Explain.
Question 1 If the coil is initially at rest between positions (a) and (b), will it tend to start turning? If so, will the rotation be counterclockwise or clockwise? Explain.
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I need help with Question 1,2 and 3
Transcribed Image Text:Below are six side views of the coil as seen when looking along the axis of rotation.
The directions of the electric current and the magnetic field are also shown. The
wires parallel to the axis of rotation are the wires that go into or out of the
(indicated by circles). For each of these two wires in each diagram, draw arrows
indicating the magnetic force on the wire. Determine how these forces tend to rotate
the coil, and circle whether the forces cause a small/large clockwise
(cw)/counterclockwise (ccw) torque on the coil. Note that diagrams (a) through (f)
show sequential steps for one full rotation of the coil.
раper
i into
(a)
papero
(b)
B
В
i
I out of
i
раper
i into
i
раper
В
I out of
раper
Cw / ccw
big / small
CW / ccw
big / small
I out of
i
out of
(c)
рарer
(d)
раper
В
В
l into
i into
раper
раper
Cw / ccw
big / small
cw / ccw
big / small
Magnetic Torque
IX - 2
Transcribed Image Text:i into
(e)
(f)
раper
В
В
i into
i
out of
раper
раper
В
B
i out of
раper
CW / сcW
big / small
cw / ccw
big / small
Question 1
If the coil is initially at rest between positions (a) and (b), will it tend to
start turning? If so, will the rotation be counterclockwise or clockwise?
Explain.
Question 2 If the coil is turning clockwise with a small amount of rotational
kinetic energy when it reaches position (d), what will the coil's motion
be like after than instant? Explain.
Question 3
Based on your responses to Questions 1 and 2, and on the rotations, as
determined in the sequential diagrams, do you expect this coil to
rotate?
Magnetic Torque
IX - 3
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