Задача 00094.

A ball with a radius of 20 cm charged up to a potential of 300 V is connected to an uncharged ball with a long conductor. After this connection, the potential of the balls turned out to be 100 V. What is the radius of the second ball?

Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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