A wire in the shape of a rectangular loop of dimensions a=2m and b=lm moves with a constant velocity v=10 m/s away from a very long straight wire carrying a current i= 10 A in the plane of the loop. The side of the rectangle with dimension a is the one next to the wire and parallel to it. The resistance of the loop is 5 Ohms. Find the current in the loop at the instant the long side of the rectangle is distance 20 m from the wire?

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I have attached my question below. I was unsure as to how my classmates got 2 x10^-8, so if you could write it out instead of typing, that would be amazing! Thank you 

A wire in the shape of a rectangular loop of dimensions a=2m and b=1m moves
with a constant velocity v=10 m/s away from a very long straight wire carrying a
current i= 10 A in the plane of the loop. The side of the rectangle with dimension a
is the one next to the wire and parallel to it. The resistance of the loop is 5 Ohms.
Find the current in the loop at the instant the long side of the rectangle is distance
20 m from the wire?
Transcribed Image Text:A wire in the shape of a rectangular loop of dimensions a=2m and b=1m moves with a constant velocity v=10 m/s away from a very long straight wire carrying a current i= 10 A in the plane of the loop. The side of the rectangle with dimension a is the one next to the wire and parallel to it. The resistance of the loop is 5 Ohms. Find the current in the loop at the instant the long side of the rectangle is distance 20 m from the wire?
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