Induced current's appearance in different situations.

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Induced current in a frame ABCD depends on changes in magnetic flux due to the current in conductor LK. When the current in LK is switched on and off, it creates a changing magnetic field, inducing current in ABCD. If the frame remains stationary relative to LK, no current is induced as there’s no change in magnetic flux. Dragging the frame to the right will also induce current due to the motion through the magnetic field. Spinning the frame around LK without changing distance can induce current if the magnetic flux through the loop changes.
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Homework Statement


2v0bm81.jpg


A DC is flowing through a conductor LK.


Homework Equations



Will there be a current in the frame ABCD, when:

a) The current in LK will be switched on and off.

b) The frame will not move relative to the conductor LK.

c) The frame will be dragged to the right.

d) The frame will be spun around the conductor LK, not changing the distance between the two conductors. (image part b)

In all cases briefly explain your answer.


The Attempt at a Solution

 
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kakadas said:

Homework Statement


2v0bm81.jpg


A DC is flowing through a conductor LK.


Homework Equations



Will there be a current in the frame ABCD, when:

a) The current in LK will be switched on and off.

b) The frame will not move relative to the conductor LK.

c) The frame will be dragged to the right.

d) The frame will be spun around the conductor LK, not changing the distance between the two conductors. (image part b)

In all cases briefly explain your answer.


The Attempt at a Solution


remember - there will be a current induced in the loop if the amount of magnetic flux threading that loop changes.
 

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