Задача id9616

Conducting ball A of radius R1 = 10 cm was charged to a potential of φ1 = 2700 V and disconnected from the current source. After this, ball A was connected by a wire, the capacitance of which can be neglected, with an uncharged conducting ball B of radius R2 = 5 cm. The balls are in the air. Determine: the initial charge of ball A; charges and potentials of the balls after connection; the energy of both balls after connection; energy released during the connection.

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