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The radii of spherical capacitor electro...

The radii of spherical capacitor electrodes are equal to `a` and `b`, with `a lt b`. The interlectordes `epsilon` and resistivity `rho`. Inititally the capacitor is not charged. At the moment `t = 0` the internal electorde gets a charge `q_(0)` Find:
(a) the times variation of the charge on the internal elecrtordes,
(b) the amount of the heat generated during the spreading of the charge.

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