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, , . 1,

 

Q = = , (9)

R = r + R + R L,

 

R ; r ; R , ; R L .

 

1. Q

Q (9), R , L C.

 

2. U 0 . . . E0

(8)

U 0 = = E 0 Q,

Q = . (10)

 

3.

W1 W2, , (. . 3) U 0 = .

DW = W2 - W1 .

, , .

(9) (10) (5), ,

Q . (11)

 

, DW W, .

, U 0 , W: W1 W2, U 0 = 0,7 U 0 , DW = W2 - W1.

W, W1 W2 f = W/(2p) [],

 

Q = . (12)

 

 





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