A Long Solenoid of Radius 3 Cm Has 1100 Turns

question 90

Multiple Choice

A long solenoid of radius 3 cm has 1100 turns per meter. If the solenoid carries a current of 1.5 A, then calculate the magnetic field at the center of the solenoid.

• A) 2.1 × 10^-3 T
• B) 1.0 × 10^-3 T
• C) 1.7 × 10^-4 T
• D) 7.0 × 10^-2 T
• E) None of the above.

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