A Solenoid Has N = 490 Loops of Wire and a Cross-Sectional

question 77

Multiple Choice

A solenoid has N = 490 loops of wire and a cross-sectional area A = 15 cm².It is moved from a field-free region to one where the magnetic field B = 0.8 T points directly along the axis of the solenoid.If the motion proceeds with constant velocity and takes t = 15 seconds,what is the magnitude of the average induced EMF?

• A)0.039 V
• B)1.25 V
• C)12.0 V
• D)125 V
• E)4900 V

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