A Flexible,circular Conducting Loop of Radius 0

question 59

Multiple Choice

A flexible,circular conducting loop of radius 0.15 m and resistance 4.0 lies in a uniform magnetic field of 0.25 T.The loop is pulled on opposite sides by equal forces and stretched until its enclosed area is essentially zero m²,as suggested in the drawings.It takes 0.30 s to close the loop.

-Determine the magnitude of the emf induced in the loop.

• A)1.2 × 10^-¹ V
• B)1.8 × 10^-² V
• C)1.8 × 10² V
• D)5.9 × 10^-² V
• E)5.9 × 10² V

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