FIGURE 23-8 -A Constant Magnetic Field Is Applied Perpendicular to the Plane

question 46

Multiple Choice

FIGURE 23-8
-A constant magnetic field is applied perpendicular to the plane of a square, single-turn coil with each side equal to 15 cm. If the area of the coil decreases at a rate of 0.20 m²/s, an emf of 20 mV is induced in that coil. What is the strength of the magnetic field applied to the coil?

• A) 0.10 T
• B) 0.20 T
• C) 0.30 T
• D) 0.40 T
• E) 0.50 T

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