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.
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:
, l, | d, | I, | , U, | , ρ ∙2/ | ∙2/ | , ε, % | |
1. | |||||||
2. | |||||||
3. |
1. .
2.
4. , ε
: _________________________________________________________
________________________________________________________________ 5. .
.
: .
. .
I = const; U = U1 +U2; R = R1 + R2. U = U1 + U2.
: , , , , , .
:
I, | U1, | U2, | U, | R1, | R2, | R, |
.
=
=
=
: __________________________________________________________
___________________________________________________________________
.
.
I = I1 + I2; U = const; .
:
I1, | I2, | I, | U, | R1, | R2, | R, |
2.7 :
2.8 ;
2.9 ;
2.10 ;
2.11 : .
2.9.: _________________________________________________________
__________________________________________
3. .
.
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. :
: , , , , , .
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:
/ | I, A | U, B | r, | , | , | Δ , | ε % |
1. | |||||||
2. |
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1. .
r = =
2. . Δ =
3. .
,
, .
: , , P(U) R(T).
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U, | , I, | , , | , R, | , | |
1. .
2. ( ).
: _________________________________________________________
________________________________________________________________