I don\'t understand why the answer is counter-clockwise. I believe I understand
ID: 1509486 • Letter: I
Question
I don't understand why the answer is counter-clockwise.
I believe I understand the concept to an extent. But I am sort of confused.
This is what I'm thinking:
So, as the wire comes closer to the loop it increases the magnitude of the magnetic field, B. By the right hand rule, we see that the current of the wire is going counter-clock wise.
So, by Lenz's Law, the new induced current would work against or opposite from the original current, or in the clock-wise direction.
Am I interpreting it wrong?
11. A long, straight wire is in the same plane as a rectangular, conducting loop. The wire carries a constant current I as shown in the figure. Which one of the following statements is true if the wire is suddenly moved toward the loop? (a) There will be no induced emf and no induced current (b) There will be an induced emf, but no induced current. (c) There will be an induced current that is clockwise around the loop (d) There will be an induced current that is counterclockwise around the loop. (d) There will be an indueed current that is counterclockwise around the loop. e) There will be an induced electric field that is clockwise around the loop.Explanation / Answer
Here we have to apply the Faraday's law of electromagnetic induction.
As the wire moves towards the loop,there is an increase of the rate of magnetic flux linked with the loop.
So due to the application of the Faraday's law which tells us"Generated current always opposes the change in flux"
So by the application of Right Hand Thumb rule
The current generated should be in counterclockwise direction.
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