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A-linav
Homework Statement
Homework Equations
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The Attempt at a Solution
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I'm having a lot of trouble understanding induced magnetic fields. I was wondering if someone can explain it for me and confirm if I have the right answers?
a) I labelled it [North | South], and the direction of the current is going counterclockwise
b) If the direction of motion of the magnet is reversed, the direction of the current is reversed (in this case it would go clockwise and [South | North] ). The magnetic field produced by the current will oppose the change that produces the current and pull back on the bar magnet, resisting the inducing action.
c) If the magnet is moved more quickly, the coils will rotate faster and a greater current will be created. (Im not sure what would happen to the magnetic field? would it be a stronger opposing force?)
d) I am completely lost at this last question... Would the induced current be greater because there is a constant change in direction/speed? Would the magnetic field be greater because it is constantly changing?
This is just an introductory course so I have not learned about Farraday's law (only Lenz's law). Any insight is appreciated please and thanks!
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