A Rectangle Is Bent on Two Sides at 90º So

question 36

Multiple Choice

A rectangle is bent on two sides at 90º so that one end lies along the xy-plane while the other end lies along the xz-plane. The length a = 10 cm and b = 30 cm. At t = 0, a magnetic field of strength B = 0.1 T lies in the yz-plane and points at an angle Ɵ = 30 and 10 ms later the field points in the opposite direction. The EMF induced in the rectangle is

• A) 10.4 V.
• B) 6.0 V.
• C) 12 V.
• D) 8.2 V.
• E) None of these is correct.

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