A flexible conducting wire of rectangular shape of sides and , lies in the plane. There is a uniform magnetic field along the . The wire is deformed continuously in the same plane from shape to another rectangular shape of sides and . Let denote the magnetic flux through the loop. Then, independent of how the loop is deformed –
is constant throughout the process.
There is no heat generated in the entire process.
The net charge flowing through the wire in the entire process is zero.
Since , there is no induced emf in the wire at any time.
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