Answer to Question #334784 in Physics for Jhonard

Question #334784

A 500-turn solenoid have a cross-sectional area 20 m^2. If its self-inductance

is 20H, then find the length of the solenoid.

Expert's answer

"L=\\frac{\\mu_0N^2A}{l}"

"l=\\frac{\\mu_0N^2A}{L}=\\frac{4\\pi*10^{-7}*500^2*20}{20}=0.314\\:\\rm m"

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