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1
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2
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3
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4
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5
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7
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8
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9
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Electronic workbench
K
אא
W
אאא
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،
אא
אא K
1 - 1 -
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Resistances
א
א
א
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א
K
אאא
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1
א-
א
(Ω) (MΩ , kΩ)
F
1000 E
F
KE
2
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W
R / P
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P
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(W)
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K(Ω)
3
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أ
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K
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0.01 ×
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1 ×
2
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10 ×
3
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100 ×
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1000 ×
5
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10,000 ×
6
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7
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8
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9
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א
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W
א F
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R =
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K
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1000 7
4
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Thermistors
א
אאאא
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א
א
W
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(PTC)
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ρ
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ρ
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1.62×10-8
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220V
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0.3 mm
900 m
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m2 10 6 069 . 7 2 1000
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(
1.72 × 10-8
א
(1-2)
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A
R =ρL =
10 6 069 . 7 8 900 10 72 .
1 × − × × − = 219 Ω
د
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K
1
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3
2 1
T U U U
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W
3 2 1
eq R R R
R = + + (1-4)
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2
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3
2
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W
3 2 1
eq R
1 R
1 R
1 R
1 = + + (1-6)
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K
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R2
R3
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R1
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× =
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700 500 R 200
R R
R R R
R 1 R
1 R
1
1 eq 3
2 3 1 2
eq 3
2 1
eq
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F(nF)
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W
3 2 1
eq C
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1 C
1 C
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2
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240 V
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50 Hz
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10 100 50 2
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240 X
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1
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3
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2
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3 L
1 L
1 L
1 L
1
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) 1 - 10
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2
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2
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X 1 X
1 R
1 X 1
⎟⎟⎠
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⎟ +
⎠
⎜ ⎞
⎝
⎛
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אאאאאא(11-1)
220 V
50 Hz
א
אא
W
R=100 Ω, C=100 µF, L=10 mH
K
א
אאא
K
א
،
א
(1-14)
W
Ω
× =
×
×
= π
= π − 31.8
10 100 50 2
1 fC
2
XC 1 6
Ω
=
×
×
× π
= π
=2 fL 2 50 10 10− 3.14
XL 3
Ω
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− +
=
− +
= R (X X ) 100 (3.14 31.8) 104
Xeq 2 L C 2 2 2
א
אאא
50 Hz
אא
K
אא W
C=100 µF, L=10 mH
א
W
Ω
× =
×
×
= π
= π
−6 67.73 10
47 50 2
1 fC
2 1 XC
Ω
− =
×
×
× π
= π
=2 fL 2 50 10 10 3 3.14 XL
Ω
=
⎟⎠
⎜ ⎞
⎝
⎛ −
=
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛ −
=
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛ −
= 3.28
73 . 67
1 13 . 3
1 1
XC 1 XL
1 1 2
XL 1 XC
1 1 Xeq