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An Ideal Solenoid of Radius a Has N Turns Per

Question 3

Multiple Choice

An ideal solenoid of radius a has n turns per unit length and current I. The magnetic flux ΦB through any area completely inside the solenoid, centered on the solenoid axis but at a 45° angle to the axis, so that it touches the inside of the solenoid, as shown below, is An ideal solenoid of radius a has n turns per unit length and current I. The magnetic flux Φ<sub>B</sub> through any area completely inside the solenoid, centered on the solenoid axis but at a 45° angle to the axis, so that it touches the inside of the solenoid, as shown below, is A) . B) . C) μ<sub>0</sub>πa<sup>2</sup>nI. D) 2μ<sub>0</sub>πa<sup>2</sup>nI. E) 0.


A)
An ideal solenoid of radius a has n turns per unit length and current I. The magnetic flux Φ<sub>B</sub> through any area completely inside the solenoid, centered on the solenoid axis but at a 45° angle to the axis, so that it touches the inside of the solenoid, as shown below, is A) . B) . C) μ<sub>0</sub>πa<sup>2</sup>nI. D) 2μ<sub>0</sub>πa<sup>2</sup>nI. E) 0. .
B)
An ideal solenoid of radius a has n turns per unit length and current I. The magnetic flux Φ<sub>B</sub> through any area completely inside the solenoid, centered on the solenoid axis but at a 45° angle to the axis, so that it touches the inside of the solenoid, as shown below, is A) . B) . C) μ<sub>0</sub>πa<sup>2</sup>nI. D) 2μ<sub>0</sub>πa<sup>2</sup>nI. E) 0. .
C) μ0πa2nI.
D) 2μ0πa2nI.
E) 0.

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