, ,

, . .

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. I U (. 1).

U I (. 1 )), , U=Ucosφ , φ - , , U ,

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(1)

y i - .

, U , Usinφ U , U U (. 1 )).

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(2)

j (2) U I U + U = U.

U U U, (1) (2)

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(3)

(3)

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(4)

(4) Z, yi. Zejφ e jy i=Zej(y u- y i+y i)= Ze jy u yu , .. U.

(3) (4), U

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(5)

.. U , , I . , U , , .

R X, . 1 ).

, , () . . .

U UU ZRX (. 1 )) .


  1


  I U (. 1 )). I=Icosφ , - I=Isinφ . , I , I . -

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(6)

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(7)

- j I 90 , I + I = I .

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(8)

(8) U -

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(9)

, , I, I I (8), U , (9).

.

(10)

, , , () G B (. 1 )).

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, :


  2



, ?

. , - - , 120 .

, , , :
- C , 5, - 10
, , .

. , , , , , , , , , , .

, 120 , - , , , . FAQ .


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