All Problems

Electromagnetic Waves. Radiation

Problem 4.202

An alternating sinusoidal current of frequency \(\omega\) \(=1000 \mathrm{~s}^{-1}\) flows in the winding of a straight solenoid whose crosssectional radius is equal to \(R=6.0 \mathrm{~cm} .\) Find the ratio of peak values of electric and magnetic energies within the solenoid.

Reveal Answer
We/Wm=1/8ε0μ0ω2R2=5.01015W_{e} / W_{m}=1 /_{8} \varepsilon_{0} \mu_{0} \omega^{2} R^{2}=5.0 \cdot 10^{-15}