What is the self-inductance of a long solenoid with a magnetic core of relative permeability μ_r? - ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS Quiz | GKFix.in

Content protected from screenshots

Question

What is the self-inductance of a long solenoid with a magnetic core of relative permeability μ_r?

A. L = μ_0 n A l
B. L = μ_r μ_0 n A / l
C. L = μ_r μ_0 n² A l
D. L = μ_0 n² A / l