In the sketch to the right, a long straight wire is in the plane of a rectangula
ID: 1546000 • Letter: I
Question
In the sketch to the right, a long straight wire is in the plane of a rectangular conducting wire loop. The current in the straight wire is up. At some point the current in the straight wire starts to decrease in magnitude. This decreased current leads to an induced current in the wire loop. In which direction will the induced current in the wire loop be? Explain how you reached this conclusion. How would your answer be different if the wire loop was on the left side of the wire instead of the right side?Explanation / Answer
induced emf appears in a loop in a direction to its cause. this is lenz law
Here
Due to I1, as Current is in upwards direction
magnetic field due to this will be acting in perpenducular to the page on the loop
the magnetic field acting on the loop aslo decrases
field causes induced emf and indced current in a directon here as counter Clocwise Direction
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if this loop is field to the Right, Direction of induced emf an Current will be Clockwise direction