Task 30790.
A dielectric cylinder of radius r with a dielectric constant e is inserted along the axis of a flat capacitor with round plates. The radius of the capacitor plates 3r, the distance between them d. Find the modulus of the magnetic field at a distance of 2r from the axis of the capacitor if the voltage on its plates increases linearly with time: V = at, where a is the known constant.
A detailed solution with a brief record of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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