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The radii of spherical capacitor electrodes are equal to a and b, with a < b. The interelectrode space is filled with homogeneous substance of permittivity e and resistivity p. Initially the capacitor is not charged. At the moment t = 0 the internal electrode gets a charge q0. Find:
(a) The time variation of the charge on the internal electrode;
(b) The amount of heat generated during the spreading of the charge. |
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