(.20.1 1, .20.2 2, .20.3 3) u = Um sinw t. - (.20.4) (.20.5) , , .
: 1. :
U [B]; R []; j [].
2. :
UM ;
UC .
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(.21.1 1, .21.2 2) u = Um sinw t. - - (.21.3) - (.21.4) , , .
: 1. :
U [B]; R []; J [A]; y S []; qS [].
2. :
FS y S;
QS qS;
W w;
UM ;
IM .
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(.22.1), .22.2.
W 1 u = Um sinw t, W 2 . (.22.1) , R 1, R 3. (.22.1) R 2. 2(Uab) (.22.3) 1 7 2() (.22.4) S 2 8 14.
(, U) (, U) , .
:
1. : U [B]; US [A]; R 1, 3×103 []; w [-1], [], I [A], B []. 8 14 S 2 = 100 2.
2. : 1 , 2 1 2; US (1-2) (2-3) 2(Uab); U 2 M, I 1 M u 2 i 1 (1-2) ; I 2 M, I 0 i 1 (2-3) ; IM, UM, U ; WT .
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