N21

@

~ 2

~

2

c

"E

+ H

~ ~

~ ~

@t (

) +

8

4 div[EH] + jE = 0:

~ 2

1

N

"E

X

8 dV =

2

q

q

;

a=1 S

ab

a

b

V

b=1

Z

~ 2

1

N

H

X

8 dV =

2c2

L

ab

I

I

:

a=1

a

b

V

b=1

Z

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c

~ ~

c

~ ~

~

4 VZ

4 IS

div[EH] dV

=

[EH] dS:

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áâà ­á⢠, ãç¨âë¢ ¥¬, çâ® R

~ ~

! 1 ¢¥ªâ®àë E; H ¨¬¥îâ ᨬ¯â®â¨ªã

~

1

,

~

1

jEj = O R2

jHj = O R2 , ¨ ¨­â¥£à¨àãï ¯® ¡¥áª®­¥ç­® 㤠«¥­­®©

¯®¢¥àå­®á⨠¯®«ãç ¥¬, çâ® ¯®á«¥¤­¨© ¨­â¥£à « à ¢¥­ ­ã«î.

~

~

2

~ ~

~

j

~

j

~ ~

jE

= (j;

; Eáâ®à) =

; jEáâ®à

N

~

~

ç⥬, çâ® j =

ja, ¨ çâ® ¯à®¢®¤­¨ª¨ ­¨£¤¥ ¤àã£ á ¤à㣮¬ ­¥ ¯¥à¥á¥-

a=1

ª îâáï

P

N

~2

N

Z

~

~

XZ

ja(~r)

dV ;

XZ

~

~

jE dV =

ja(~r)Eáâ®à dV:

a=1

a=1

V

V

V

~2

ZV

dV = ZS

jan dS lIa

VZ

ja

2

~

~

~

~

dV = IaRa;

jaEáâ®à

(Eáâ®à; dla) = IaEa:

@

<

1 N

1

N

=

N

2

X

X

X

2

Sabqaqb + 2c2

(IaRa ; IaEa) = 0:

:

;

@t 8

a=1

a=1

LabIaIb9 +

a=1

b=1

b=1

®á¯®«ì§ã¥¬áï ®ç¥¢¨¤­ë¬¨ ¢ëà ¦¥­¨ï¬¨

@

Sab = 0;

@

Lab = 0;

@

=

d

;

@t

@t

@t

dt

N

N

)

X=1

(X=1

1

dIb

Ia

Sabqb +

Lab dt

+ IaRa ; Ea

= 0:

a

b

c2

dIb

d2qb

ª ª ª

dt

=

dt2 , â® ¯®«ã稬 ®¡®¡é¥­­ë© § ª®­ ¬

N

1

Lab d2qb

+ Ra dqa

X

Sabqb +

= Ea:

b=1

c2

dt2

dt