III. Yangi mavzuning bayoni:8-mashq.
1.
Berilishi
Formulasi
Yechilishi
𝜀=1.55 V
R=3Ω
U=0.95V
𝐼 =
𝑈
𝑅
; 𝐼 =
𝜀
𝑅+𝑟
;
𝑟 =
3Ω(5.55V−0.95V)
0.95V
≈2Ω
Topish kerak:
Javob:
ERGASHOV JALOLIDDIN +998911595353
r-?
𝑟 =
𝑅(𝜀 − 𝑈)
𝑈
r≈2Ω
2.
Berilishi
Formulasi
Yechilishi
𝜀=30 V
I=3A
U=18V
I=UR; 𝐼 =
𝜀
𝑅+𝑟
; 𝑅 =
𝑈
𝐼
;
𝑟 =
𝜀 − 𝑈
𝐼
𝑅 =
18𝑉
3𝐴
= 6Ω;
𝑟 =
30𝑉−18𝑉
3𝐴
=4 Ω
Topish kerak:
Javob:
R-? ; r-?
R=6 Ω ; r=4 Ω
3.
Berilishi
Formulasi
Yechilishi
𝑅
1
=5 Ω
𝐼
1
=5A
𝑅
2
=2 Ω
𝐼
2
=8A
𝐼 =
𝜀
𝑅+𝑟
; 𝜀=𝐼
1
(𝑅
1
+ 𝑟);
𝜀=𝐼
2
(𝑅
2
+ 𝑟); 𝑟 =
𝐼
1
𝑅
1
−𝐼
2
𝑅
2
𝐼
2
−𝐼
1
𝑟 =
5𝐴∗5Ω−8𝐴∗2 Ω
8𝐴−5𝐴
=3 Ω;
𝜀=5𝐴(5 Ω + 3 Ω) = 40𝑉;
𝜀=8𝐴(2 Ω + 3 Ω) = 40𝑉
Topish kerak:
Javob:
r-? ;𝜀−?
r = 3 Ω ;𝜀=40V
4.
Berilishi
Formulasi
Yechilishi
𝜀=1.5 V
I=30A
R=1Ω
𝐼 =
𝜀
𝑅+𝑟
; R=0 ; 𝐼 =
𝜀
𝑟
; 𝑟 =
𝜀
𝐼
;
U=IR
𝑟 =
1.5 𝑉
30𝐴
=0.05 Ω;
U=30 A*1 Ω=30 V
Topish kerak:
Javob:
r-? ; U-?
r = 0.05Ω ; U=
30 V
ERGASHOV JALOLIDDIN +998911595353
IV. Uygatopshiriqlar.148-sahifadagi8- mashq 5-6-7-8-9-10 masalalarni ishlash.
V.Baholash.O’quvchining darsdagi faolligi 2 ball,mustaqil fikrlash qobilyati 1 ball,formula va qonunlarni yod
olishga 1ball,uyga vazifa 1ball, jami 5ball.
Do'stlaringiz bilan baham: |