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Electromagnetic Induction. Maxwells Equations

Problem 3.339

A long cylinder of radius aa carrying a uniform surface charge rotates about its axis with an angular velocity ω.\omega . Find the magnetic field energy per unit length of the cylinder if the linear charge density equals λ\lambda and μ=1\mu=1

Reveal Answer
W1=μ0λ2ω2a2/8πW_{1}=\mu_{0} \lambda^{2} \omega^{2} a^{2} / 8 \pi
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