An Elastic Circular Conducting Loop Expands at a Constant Rate $\varOmega$

question 63

Multiple Choice

An elastic circular conducting loop expands at a constant rate in time.The radius is initially 0.200 m,but then begins to increase 0.018 m every second.The loop has a constant resistance of and is placed in a region of uniform (same everywhere) magnetic field of 0.880 T,perpendicular to the plane of the loop.Calculate the resistance of the loop if magnitude of the induced current 2.4 s after the loop begins expanding is 1.3 * 10^-3 A)

• A)21.9\(\varOmega\)
• B)15.0 \(\varOmega\)
• C)13.4 \(\varOmega\)
• D)11.4 \(\varOmega\)
• E) 18.6 \(\varOmega\)

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