All Problems

Electromagnetic Induction. Maxwells Equations

Problem 3.316

Find the inductance of a solenoid of length ll whose winding is made of copper wire of mass m.m . The winding resistance is equal to RR. The solenoid diameter is considerably less than its length.

Reveal Answer
L=μ04πmRlρρ0, where ρ and ρ0 are the resistivity and the density of copperL=\frac{\mu_{0}}{4 \pi} \frac{m R}{l \rho \rho_{0}}, \text { where } \rho \text { and } \rho_{0} \text { are the resistivity and the density of copper}