An Ideal Solenoid of Radius a Has N Turns Per

question 73

Multiple Choice

An ideal solenoid of radius a has n turns per unit length and current I. The magnetic flux ΦB through any circular area of radius a inside the solenoid, centered on and perpendicular to the solenoid axis, is

• A) .
• B) .
• C)μ0πa2nI.
• D)2μ0πa2nI.
• E)0.

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