A 0100-M Long Solenoid Has a Radius of 0

question 39

Multiple Choice

A 0.100-m long solenoid has a radius of 0.050 m and 1.50 × 10⁴ turns. The current in the solenoid changes at a rate of 6.0 A/s. A conducting loop of radius 0.0200 m is placed at the center of the solenoid with its axis the same as that of the solenoid as shown.
-What is the magnetic flux through the small loop when the current through the solenoid is 2.50 A?

• A)2.95 × 10^-2 Wb
• B)7.28 × 10^-2 Wb
• C)2.95 × 10^-4 Wb
• D)4.38 × 10^-4 Wb
• E)5.92 × 10^-4 Wb

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