The Figure Shows a Uniform,3

question 49

Multiple Choice

The figure shows a uniform,3.0-T magnetic field that is normal to the plane of a conducting,circular loop with a resistance of 1.5 and a radius of 0.024 m.The magnetic field is directed out of the paper as shown.Note: The area of the non-circular portion of the wire is considered negligible compared to that of the circular loop.

-What is the average current around the loop if the magnitude of the magnetic field is doubled in 0.4 s?

• A)2.8 × 10^-³ A,clockwise
• B)4.5 × 10^-³ A,clockwise
• C)4.5 × 10^-³ A,counterclockwise
• D)9.0 × 10^-³ A,clockwise
• E)9.0 × 10^-³ A,counterclockwise

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