The space inside a long solenoid, the winding of which includes N turns, is filled with a homogeneous substance with dielectric and magnetic permeability, respectively, e and m. The solenoid length l and radius R are known. Current I = I0coswt flows through the winding. Neglecting edge effects, determine the ratio of the maximum electrical energy in the solenoid to the maximum magnetic energy.
Answer. Format gif
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