Magnetic field inside a long, straight solenoid (19-17)

Balloon Art Concept Check: Click on the part of the equation that is described by the bubble text shown

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Question

Permeability of free space
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Review

If the solenoid has length \(\ell\), the quantity \(n\) in Equation 19-17 equals the total number of windings \(N\) divided by \(\ell\). We can then write the magnetic flux through the crosssectional area \(A\) of each winding of the solenoid as

\(\Phi_B = BA = (\mu_0 ni)A = \left(\frac{\mu_0Ni}{\ell}\right)A\)

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