A long narrow solenoid has length ℓ and a total of N turns, each of which has cross-sectional area A.Its inductance is: A)µ₀N²Aℓ B)µ₀N²A/ℓ C)µ₀NA/ℓ D)µ₀N² ℓ/A E)none of these

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Quizplus · Accepted Answer

The inductance of a solenoid is given by the formula $L = \mu_0 \frac{N^2 A}{\ell}$, where $L$ is the inductance, $\mu_0$ is the permeability of free space, $N$ is the number of turns, $A$ is the cross-sectional area, and $\ell$ is the length of the solenoid. This matches choice B.

A Long Narrow Solenoid Has Length ℓ and a Total