A solenoid 4.0 cm in radius and 4.0 m in length has 8000 uniformly spaced turns and carries a current of 5.0 A. Consider a plane circular surface (radius = 2.0 cm) located at the center of the solenoid with its axis coincident with the axis of the solenoid. What is the magnetic flux through this surface? (1 Wb = 1 T / m2)
a. 63 ?Wb
b. 16 ?Wb
c. 0.25 mWb
d. 10 ?Wb
e. 5.0 ?Wb
b
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