A Flat Coil of Wire Consisting of 20 Turns,each with an Area

question 44

Multiple Choice

A flat coil of wire consisting of 20 turns,each with an area of 50 cm²,is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s.If the coil has a total resistance of 0.40 W,what is the magnitude of the induced current?

• A)70 mA
• B)140 mA
• C)500 mA
• D)800 mA

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