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The figure shows a rectangular loop of wire that straddles three regions of uniform magnetic field. With B in teslas and time in seconds,
the fields are B₁-3, B₂-4t, B3-6. The dimensions are L-2.0m and d-2.0m. The circuit includes an ideal battery of 12 V. What is
the magnitude of the net emf (V) in the loop?
OB,
ⓇB₂
ⓇB₂

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