Chitsanzo cha dera loletsa

Zitsanzo zitatu za mafunso okhudza dera loletsa kupondereza

1. Mndandanda wa ma resistors omwe ali ndi kukana kofanana kwambiri ndi...

Zokambirana

Yankho A

R₁ = 2 Ω, R₂ = 2 Ω, R₃ = 6 Ω, R₄ = 6 Ω

R₃ ndi R₄ cholumikizidwa motsatizana. Chotsukira cholowa m'malo ndi:

1 / R₃₄ = 1/R₃ + 1/R₄ = 1/6 + 1/6 = 2/6

R₃₄ = 6/2 = 3 Ω

R_1, R₂ ndi R₃₄ cholumikizidwa motsatizana. Choletsa cholowa m'malo ndi:

R= R₁ + R₂ +R₃₄ = 2 Ω + 2 Ω + 3 Ω

R = 7Ω

Yankho B

R₁ = 2 Ω, R₂ = 4 Ω, R₃ = 4 Ω, R₄ = 8 Ω

R₂ ndi R₃ cholumikizidwa motsatizana. Choletsa cholowa m'malo ndi:

R₂₃ = R₂ + R₃ = 4 Ω + 4 Ω = 8 Ω

R₂₃ ndi R₄ cholumikizidwa motsatizana. Chotsukira cholowa m'malo ndi:

1 / R₂₃₄ = 1/R₂₃ + 1/R₄ = 1/8 + 1/8 = 2/8

R₂₃₄ = 8/2 = 4 Ω

R₁ ndi R₂₃₄ cholumikizidwa motsatizana. Choletsa cholowa m'malo ndi:

R = R₁ +R₂₃₄ = 2 Ω + 4 Ω

R = 6 Ω

Yankho C

R₁ = 9 Ω, R₂ = 9 Ω, R₃ = 9 Ω, R₄ = 2 Ω

R_1, R₂ ndi R₃ cholumikizidwa motsatizana. Chotsukira cholowa m'malo ndi:

1 / R₁₂₃ = 1 /R₁ + 1/R₂ + 1/R₃ = 1/9 + 1/9 + 1/9 = 3/9

R₁₂₃ = 9/3 = 3 Ω

R₁₂₃ ndi R₄ cholumikizidwa motsatizana. Choletsa cholowa m'malo ndi:

R = R₁₂₃ +R₄ = 3 Ω + 2 Ω

R = 5 Ω

Yankho D

R₁ = 5 Ω, R₂ = 10 Ω, R₃ = 2 Ω, R₄ = 2 Ω

R₁ ndi R₂ cholumikizidwa motsatizana. Chotsukira cholowa m'malo ndi:

1 / R₁₂ = 1/R₁ + 1/R₂ = 1/5 + 1/10 = 2/10 + 1/10

1 / R₁₂ = 3 / 10

R₁₂ = 10 / 3 Ω

R₃ ndi R₄ cholumikizidwa motsatizana. Chotsukira cholowa m'malo ndi:

1 / R₃₄ = 1/R₃ + 1/R₄ = 1/2 + 1/2 = 2/2

R₃₄ = 1 Ω

R₁₂ ndi R₃₄ cholumikizidwa motsatizana. Choletsa cholowa m'malo ndi:

R = R₁₂ +R₃₄ = 10/3 + 3/3 = 13/3

R = 4,3 Ω

Yankho lolondola ndi A.

2. Kukana kofanana ndi komwe kuli pachithunzi chili pansipa ndi…

A. 26 Ohm

B. 16 Ohms

C. 15 Ohms

D. 11 Ohm

Zokambirana

Zotsutsa 6 Ω, 3 Ω ndi 2 Ω zimalumikizidwa motsatizana. Zotsutsa zolowa m'malo ndi izi:

1 / R_P = 1/6 + 1/3 + 1/2 = 1/6 + 2/6 + 3/6 = 6/6

R_P = 6/6 = 1 Ω

Ma resistors 7 Ω, 8 Ω, ndi 1 Ω amalumikizidwa motsatizana. Ma resistors olowa m'malo ndi awa:

R = 7 + 8 + 1 = 16 Ω

Yankho lolondola ndi B.

3. Kodi Rp ndi ndalama zingati mu mixed circuit yomwe ili pansipa?

A. 8 ohms

B. 1/8 ohm

C. 1 ohms

D. 7 ohms

Zokambirana

Amadziwika kuti:

Wotsutsa 1 (R)₁) = 2 Ohms

Wotsutsa 2 (R)₂) = 2 Ohms

Wotsutsa 3 (R)₃) = 2 Ohms

Wotsutsa 4 (R)₄) = 2 Ohms

Anafunsa kuti: Choletsa cholowa m'malo

Yankho:

Wotsutsa R₂ ndi chotsutsa R₃ cholumikizidwa motsatizana. Choletsa cholowa m'malo:

1 / R₂₃ = 1/R₂ + 1/R₃

1 / R₂₃ = 1/2 + 1/2 = 2/2

R₂₃ = 1 Ohms

Wotsutsa R₁, chotsutsa R₂₃ ndi chotsutsa R₃ cholumikizira motsatizana. Choletsa cholowa m'malo:

R = R₁ +R₂ +R₃ = 2 + 1 + 2

R = 5 Ohm

Yankho lolondola ndi 5 Ohms.

Gwero la funso:

Mafunso a Mayeso a Sayansi ya Sukulu ya Sekondale/Chisilamu cha Sukulu ya Sekondale