R , . : 
(1), ρ , , : [ ρ ]=×. : 
(2).
.. ρ :
1) R, : 
(3);
2) S : 
(4), π=3,14, d .
3) l .
1. 
, , . R (3): 
__________;
2. , : 
__________;
3. d S (4): d = _____; 
_____
4.C l: l = _____;
5. (2):
________; 
________;
6. 1.
1
| I, | U, | R, | d, | S, 2 | l, | ρ, × | ρ , × | ρ , × | Δ ρ, × | ε, % | |
| 1 |
|
|
|
|
|
|
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| 2 |
7.
| . |
| . |
| 2 |
| 19 |
:
________;
8. ρ , , : ____ ______;
9. : 
, 
: 
_______; 
________;
10. : 
: _______________________________.
: ______________________________________________________________________
_____________________________________________________________________________
1. , ?
2. ?
:
| . |
| . |
| 1 |
| 20 |
|
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:
: ;
:
: , , , , , , ;
, .
