Energy Stored in Different Coils#

Solenoid \(A\) is tightly wound while solenoid \(B\) has windings that are evenly spaced with a gap equal to \({\rm {{ params.num }}} d\), where \(d\) is the diameter of the wire. The solenoids are otherwise identical.

Question Text#

Determine the ratio of the energies stored per unit length of these solenoids when the same current flows through each.

Answer Section#

pl-submission-panel#

pl-answer-panel#

\(E_B/E_A =\) .

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.