A Strong Electromagnet Produces a Uniform Magnetic Field of 0

question 26

Multiple Choice

A strong electromagnet produces a uniform magnetic field of 0.50 T over a circular cross-section of radius 25 cm. A circular coil with 100 turns and a total resistance of 40.00 Ù is placed around the electromagnet. The current is smoothly reduced in the electromagnet until it reaches zero in 50.00 ms. What is the current induced in the coil?

• A)0.41 A
• B)0.78 A
• C)0.81 A
• D)1.56 A

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