A Solenoid of Radius 1

question 33

Multiple Choice

A solenoid of radius 1.1 cm, carrying a current of 2.2 A, produces a magnetic field at its center of 0.28 T. How many turns per unit length does the solenoid have?

• A) 1.0 × 10⁵ m⁻¹
• B) 1.0 × 10⁻⁹ m⁻¹
• C) 1.1 × 10³ m⁻¹
• D) 2.2 × 10³ m⁻¹
• E) 7.0 × 10³ m⁻¹

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