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, , . , , . => , , . : Q = Q1+Q2+Q3. , (3): Q = CU, Q = U; Q1 = C1U; Q2 = C2U; Q3 = C3U U = C1U+C2U+C3U. , , , : = 1+2+3. (5). => = n. (6).
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. U = U1+U2+U3, U = Q/C; U1 = Q/C1; U2 = Q/C2; U3 = Q/C3, Q/C = Q/C1+Q/C2+Q/C3. Q, : 1/ = 1/1 + 1/2 + 1/3. (7).
, (7), : = 12/(1+2) (8).
n (7) : = /n. (9).
●─────|
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1╪ 2╪ 3 ╪ ●──║──║──║──●
────●───── 1 2 3
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: WC = CU2/2 (10), , Q=CU, WC = QU/2 (11).
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