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A horizontal circular wire loop of radius 0.5 m lies in a plane perpendicular to a uniform magnetic field pointing from above into the plane of the...

A horizontal circular wire loop of radius 0.5 m
lies in a plane perpendicular to a uniform
magnetic field pointing from above into the
plane of the loop, has a magnitude of 0.19 T.
If in 0.1 s the wire is reshaped from a circle
into a square, but remains in the same plane.

The current in the loop during the deforma-
tion
1. flows in a direction that cannot be deter-
mined from given information.
2. flows counter-clockwise when viewed from
above.
3. does not arise.
4. flows clockwise when viewed from
above.

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