Chapter 22 Magnetic Fields

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    CAMBIDGE A LEEL

    PHIC

    MAGNEIC

    FIELD

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    LEANI NG OCOMEN. LEANING OCOME

    C

    .

    :

    ,

    , ,

    ,

    H ,

    .

    ?

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    N. LEANING OCOME H ?

    F L H

    . C

    .

    D

    F L

    H .

    LEANI NG OCOME

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    N. LEANING OCOME D

    .

    .

    A . C

    .

    A

    . D

    .

    LEANI NG OCOME

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    N. LEANING OCOME

    .

    C ,

    . H H

    .

    H .

    2

    ( N M I ) .

    LEANI NG OCOME

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    MAGNEIC FIELDA :

    I. P ,

    II. C .

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    MAGNEIC FIELDH

    : A .

    I. ,

    II. ( ).

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    MAGNEIC FIELDE:

    (I) (II) . . B

    / , 2D .

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    MAGNEIC FIELD D

    .

    .

    .

    .

    D

    ?

    :

    ://...//

    3///.

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    MAGNEIC FIELD D

    .

    .

    .

    .:

    ://.

    ./2.

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    MAGNEIC FIELD

    .

    , .

    .

    : ://..///

    .

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    MAGNEIC FIELD

    3

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    , 2

    .H,

    .

    .

    :

    ://...////%3FI=477&=M

    I

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    E A M P L E

    F 12.5: E , P 316, C 12: M F, I A/A

    L P, M, C, A B, H E,

    K, 2008.

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    E A M P L E

    F 12.6: E , P 317, C 12: M F, I A/A

    L P, M, C, A B, H E,

    K, 2008.

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    M A G N E I C F I E L D

    A O N D A I G H I E

    .

    2D

    .

    .

    F 26.4, 408, C 26: M F E; C

    I A A L P C, , J, C ,

    2 , C P, C, K,2014.

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    M A G N E I C F I E L D

    A O N D A I G H I E

    F 26.4, 408, C 26: M F E; C

    I A A L P C, , J, C ,

    2 , C P, C, K,2014.

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    ( ).

    .

    .

    : ://3.../

    4P8/F37NI/AAAAAAAAAE/

    H53M9E/1600/

    2.

    M A G N E I C F I E L D

    A O N D A I G H I E

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    .

    G

    .

    .

    : ://...////003.

    M A G N E I C F I E L D

    A O N D A I G H I E

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    M A G N E I C F I E L D

    A O N D C O I L

    .

    A .

    C

    ?

    :://..//11.

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    M A G N E I C F I E L D

    A O N D C O I L

    .

    .

    F 12.11: 318, C 12: M

    F, I A/A L P,

    M, C, A B, H

    E, K, 2008.

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    HEMHOL COIL A H

    (

    ),

    ,

    .

    F 27.10, 427, C 27: C

    P; C I A A

    L P C, , J, C

    , 2 , C

    P, C, K,2014.

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    HEMHOL COIL A H

    .

    .

    .

    F 12.14: 318, C 12: M F, I A/A L

    P, M, C, A B, H E, K,2008.

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    M A G N E I C F I E L D

    A O N D O L E N O I D

    .

    .

    : ://..///D2///E.

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    .

    H

    ?

    :://./4.

    M A G N E I C F I E L D

    A O N D O L E N O I D

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    G

    .

    .

    M A G N E I C F I E L D

    A O N D O L E N O I D

    F 26.5 , 408, C 26: M F E;

    C I A A L P C, , J, C

    , 2 , C P, C, K,2014.

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    :

    ,

    .

    , , .

    M A G N E I C F I E L D

    A O N D O L E N O I D

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    EAMPLE

    F 12.15, E, 319, C 12: M F, I A/A

    L P, M, C, A B, H E, K, 2008.

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    EAMPLE

    1, 409, C 26: M F E; C

    I A A L P C, , J, C ,

    2 , C P, C, K,2014.

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    EAMPLE

    2, 409, C 26: M F E; C

    I A A L P C, , J, C ,

    2 , C P, C, K,2014.

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    FIELD OF A FOCEA

    3D .

    :I. G ,

    II. E .

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    FIELD OF A FOCE

    ?A: I

    , .

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    FIELD OF A FOCEE:

    I. B ,

    .

    II. B 2

    , .

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    EAMPLE

    3, 409, C 26: M F E; C

    I A A L P C, , J, C ,

    2 , C P, C, K,2014.

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    EAMPLE 6, 41, 2009.

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    EAMPLE 6, 41, 2009 ().

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    EAMPLE 6, 41, 2009 ().

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    EAMPLE 6, 41, 2009 ().

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    EAMPLE 6, 41, 2009 ().

    M A G N E I C F I E L D A N D

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    M A G N E I C F I E L D A N D

    M O I N G C H A G E B : A

    .

    () ? ,

    ,, .

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    E

    .A ,

    .

    , .

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    . A , .

    A , .

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    F 26.10, 410,

    C 26: M F

    E;C I A

    A L P

    C, , J,

    C , 2

    , C P, C,

    K,2014.

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    F 26.8, 409,

    C 26: M F

    E;C I A

    A L P

    C, , J,

    C , 2

    , C P, C,

    K,2014.

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    ,:o , N;o , A;o

    , ;o , (); o

    .

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    F 12.21: E , P 323, C 12: M F, I A/A

    L P, M, C, A B, H E,

    K, 2008.

    M A G N E I C F O C E O N C E N

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    F L H

    .

    .

    .

    F 26.9, 410, C 26:M F E;

    C I A A L

    P C, , J, C

    , 2 , C

    P, C, K,2014.

    M A G N E I C F O C E O N C E N

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    M A G N E I C F O C E O N C E N

    C A I N G C O N D C O

    F 12.18: E , P 321, C 12: M F, I A/A

    L P, M, C, A B, H E,

    K, 2008.

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    EAMPLE 4 F26.11, 410, C

    26: M F E;

    C I

    A A L P

    C, ,

    J, C , 2 ,

    C

    P, C,

    K,2014.

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    EAMPLE 5,6 7, 410, C 26:

    M F E;

    C

    I A A

    L P

    C, ,J, C

    , 2 ,

    C

    P, C,

    K,2014.

    M A G N E I C F O C E B E E E N

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    M A G N E I C F O C E B E E E N

    O C O N D C O

    , .H,

    , .

    .

    M A G N E I C F O C E B E E E N

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    M A G N E I C F O C E B E E E N

    O C O N D C O B ,

    ,

    .

    ,

    .

    :

    I. F H

    II.

    F 12.23, P 325, C 12: M F, I A/A L

    P, M, C, A B, H E, K,2008.

    M A G N E I C F O C E B E E E N

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    M A G N E I C F O C E B E E E N

    O C O N D C O

    F 26.22, 415, C 26: M F

    E; C I A A

    L P C, , J, C

    , 2 , C P,C, K,2014.

    I. F H

    ,

    .

    .

    F H

    , .

    ?

    M A G N E I C F O C E B E E E N

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    M A G N E I C F O C E B E E E N

    O C O N D C O II.

    .

    C

    .

    .

    F 12.15, E, 319, C 12: M F, I A/A

    L P, M, C, A B, H E,

    K, 2008.

    M A G N E I C F O C E B E E E N

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    M A G N E I C F O C E B E E E N

    O C O N D C O

    .F 26.22, 415, C 26: M F

    E; C I A A

    L P C, , J, C

    , 2 , C P,C, K,2014.

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    EAMPLE 13 F 26.25, 416, C 26:

    M F

    E;

    C I A

    A L P

    C, , J,

    C , 2

    , C

    P, C, K,2014.

    M A G N E I C F L D E N I

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    M A G N E I C F L D E N I

    ,

    . , ,

    .

    , B

    .

    M A G N E I C F L D E N I

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    M A G N E I C F L D E N I

    , B

    .

    F , ,

    B ( B ), ,

    .

    M A G N E I C F L D E N I

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    M A G N E I C F L D E N I

    , B .

    , ..

    .

    M A G N E I C F L D E N I

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    M A G N E I C F L D E N I

    (

    .

    M A G N E I C F L D E N I

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    . D: , B

    ,

    .

    M A G N E I C F L D E N I

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    HA I HE ELA?

    () .D:

    1 , 1 ,

    1 N

    1

    .

    H O O M E A E

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    M A G N E I C F L D E N I ?F 26.14, 412,

    C 26: M

    F

    E;

    C

    I A A

    L P

    C, ,J, C

    , 2 ,

    C

    P, C,

    K,2014.

    H O O M E A E

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    M A G N E I C F L D E N I ?

    . .

    ,

    .

    ( )

    .

    H O O M E A E

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    M A G N E I C F L D E N I ? (

    ). A 3 ,

    (). H,

    ,

    .

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    H O O M E A E

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    M A G N E I C F L D E N I ? A

    . F 26.15, 412,C 26: M

    F

    E;

    CI A A

    L P

    C, ,

    J, C

    , 2 ,C

    P, C,

    K,2014.

    H O O M E A E

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    M A G N E I C F L D E N I ?

    F 26.15, 412, C 26: M

    F E; C

    I A A L P

    C, , J, C

    , 2 , C

    P, C, K,2014.

    .

    B

    ,

    .

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    EAMPLE

    7, 58: M

    , 178 179; POBLEM IN PHIC ;

    E.D GADINE, B.L MKIICK; MG H B

    C, 1985.

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    EAMPLE 8 F26.16, 413, C

    26: M F

    E;

    C I

    A A L P

    C, , J,

    C ,

    2 , C

    P,

    C, K,2014.

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    EAMPLE 9 F26.17, 413, C

    26: M F

    E;

    C I

    A A L P

    C, , J,

    C ,

    2 , C

    P,

    C, K,2014.

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    EAMPLE 6, 42, 2010.

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    EAMPLE 6, 42, 2010 ().

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    EAMPLE 6, 42, 2010 ().

    E F F E C O F N I F O M M A G N E I C

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    .

    ,

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    F 27.1, 423,

    C 27: C

    P; C

    I A A

    L P C,

    , J, C

    , 2 ,

    C

    P, C,

    K,2014.

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    .

    ( ) .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    .

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    D 27.17 (), C 27: M F M F, 27.4,

    893, P, F, 13

    , P E, F, 2012.

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    .

    ( )

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    , F L H

    ( ).

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    .

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    I :

    .F ,

    F L H ; .

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    .

    ,

    .

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

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    F 27.3, 423,

    C 27: C

    P; C

    I A AL P C,

    , J, C

    , 2 ,

    C

    P, C,

    K,2014.

    F I E L D O N C H A G E D P A I C L E

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    EAMPLE 1 F27.5, 424, C

    27: C P;

    C IA A L P

    C, , J,

    C ,

    2 , C

    P,

    C, K,2014.

    E F F E C O F N I F O M M A G N E I C

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    ,

    , , ; , C; , 1 ; , ;

    F I E L D O N C H A G E D P A I C L E

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    EAMPLE

    2 3, 425, C 27: C P;

    C I A A L P C, ,

    J, C , 2 , C

    P, C, K,2014.

    E F F E C O F N I F O M M A G N E I C

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    F 27.8, 425,

    C 27: C

    P; C

    I A AL P C,

    , J, C

    , 2 ,

    C

    P, C,

    K,2014.

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

    F I E L D O N C H A G E D P A I C L E

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    .

    .

    ?

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

    F I E L D O N C H A G E D P A I C L E

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    A

    , ,

    , .

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

    F I E L D O N C H A G E D P A I C L E

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    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

    F I E L D O N C H A G E D P A I C L E

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    H,

    , .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

    F I E L D O N C H A G E D P A I C L E

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    . (H ).

    .

    .

    F I E L D O N C H A G E D P A I C L E

    E F F E C O F N I F O M M A G N E I C

    F I E L D O N C H A G E D P A I C L E

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    :I.

    ,

    II. ,

    III. A B .

    F I E L D O N C H A G E D P A I C L E

    EAMPLE

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    EAMPLE 4,5 6, 426, C 27: C

    P; C

    I A AL P C,

    , J, C

    , 2 ,

    C

    P, C,K,2014.

    EAMPLE

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    EAMPLE

    35, 58: M , 182;POBLEM IN PHIC ; E.D GADINE, B.L MKIICK; MG H B

    C, 1985.

    EAMPLE

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    EAMPLE

    37, 58: M , 182;

    POBLEM IN PHIC ; E.D GADINE, B.L MKIICK; MG H B

    C, 1985.

    EAMPLE

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    D 27.21, C 27:

    M F M

    F, 27.4, 894,

    P,

    F, 13 ,

    P E,

    F, 2012.

    EAMPLE

    EAMPLE

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    , .B

    . .

    ?

    EAMPLE

    E F F E C O F N I F O M E L E C I C

    F I E L D O N C H A G E D PA I C L E

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    F I E L D O N C H A G E D PA I C L E

    , .

    .

    .

    E F F E C O F N I F O M E L E C I C

    F I E L D O N C H A G E D PA I C L E

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    F 12.30; P 330, C 12: E; 12.2: F F,

    I A/A L P, M, C, A B, H E,

    K, 2008.

    F I E L D O N C H A G E D PA I C L E

    EAMPLE

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    F 12.30; P 330, C 12: E; 12.2: F F,

    I A/A L P, M, C, A B, H E,

    K, 2008.

    EAMPLE, ,

    :

    I.

    ,

    ,

    II.

    , ,

    III.

    ,

    =

    H E P E C I F I C C H A G E

    O F A N E L E C O N

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