Tusaale ah Awoodda Korontada

5 Tusaalooyin Su'aalo Ku Saabsan Korontada

1. Go'aami awoodda korantada dhibic 1 cm u jirta dallacaadda q = 5,0 μC. Joogtada Coulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C.
Dood
Waa la ogyahay in:
Masaafada u dhaxaysa dallacaadda (r) = 1 cm = 1/100 m = 0,01 m = 10^-2 m
Dalac (q) = 5,0 μC = 5,0 x 10^-6 Coulomb
La weydiiyay: Awoodda korantada (V)
Jawaab:

Awoodda korontada:

Awoodda korontadu waa 4,5 x 10⁶ Waat

2. Kharash Q₁ = 5,0 μC iyo dallacaad Q₂ = 6,0 μC. Joogtada Coulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Dhibicda A waxay ku jirtaa bartamaha labada xamuulGo'aami awoodda korantada ee barta A!
Dood
Waa la ogyahay in:
Kharashka Q₁ = -5,0 μC = -5,0 x 10^-6 C
Masaafada barta A laga bilaabo Q₁ = 10 cm = 0,1 m = 10^-1 m
Kharashka Q₂ = 6,0 μC = 6,0 x 10^-6 C
Masaafada barta A laga bilaabo Q₂ = 10 cm = 0,1 m = 10^-1 m
Joogtada ah ee Coulomb (k) = 9 x 10⁹ Nm²C^-2
La weydiiyay: Awoodda korantada ee barta A
Jawaab:

Awoodda korontada 1:

Awoodda korontada 2:

Awoodda korantada ee barta A:

V = V₂ - V₁
V = (54 – 45) x 10⁴
V = 9 x 10⁴
Awoodda korantada ee barta A waa 9 x 10⁴ Waat

3. Kharashka q₁ = 5,0 μC iyo dallacaad q₂ = 6,0 μC. Joogtada Coulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Go'aami awoodda korantada ee barta A!
Dood
Waa la ogyahay in:
Kharashka Q₁ = -5,0 μC = -5,0 x 10^-6 C
Masaafada barta A laga bilaabo Q₁ = 40 cm = 0,4 m = 4 x 10^-1 m
Kharashka Q₂ = 6,0 μC = 6,0 x 10^-6 C
Masaafada barta A laga bilaabo Q₂ = 50 cm = 0,5 m = 5 x 10^-1 m
Joogtada ah ee Coulomb (k) = 9 x 10⁹ Nm²C^-2
La weydiiyay: Awoodda korantada ee barta A
Jawaab:

Awoodda korontada 1:

Awoodda korontada 2:

Awoodda korantada ee barta A:

V = V₁ +V₂
V = (-11,25 + 10,8) x 10⁴
V = -0,45 x 10⁴
V = -4,5 x 10³
Awoodda korantada ee barta A waa -4,5 x 10³ Waat

4. Su'aalaha Imtixaanka Qaranka ee Fiisigiska SMA/MA U-ZC-2013/2014 No. 28
Goobo godan oo gudbisa korontada waxaa lagu dallacayaa koronto togan oo ah 500 µC sida ku cad jaantuska soo socda:
Kee baa sax ah weedhahan soo socda?
A. Awoodda korantada ee barta P = 2 jibaar awoodda korantada ee barta R
B. Awoodda korantada ee barta Q waa la mid ah tan barta P.
C. Awoodda korantada ee barta T = 2 jibaar awoodda korantada ee barta Q
D. Awoodda korantada ee barta P waa la mid ah tan barta T.
E. Awoodda korantada ee dhibcaha P, Q, iyo R waa isku mid.
Dood
Sidaa darteed, goob godan oo gudbisa ma jirto koronto gudaha kubbadda. Sida laga soo xigtay hirgelinta sharciga Gauss, haddii aysan jirin koronto ku jirta wareegga godan markaa ma jiro goob koronto oo ku taal wareegga godan.

Goobta korontada waxay xiriir la leedahay farqiga kartida korantada kaas oo lagu muujiyo isla'egta V_ab = D d, halkaas oo V_ab = farqiga suurtagalka ah ee u dhexeeya laba dhibcood, E = garoonka korontada iyo d = masaafada u dhaxaysa laba dhibcood. E = 0 sidaas darteed Vab = 0. Goobta korontadu waa eber sidaa darteed farqiga suurtagalka ah waa eber. Farqiga eber ee suurtagalka ah macnaheedu waa inaysan jirin wax farqi ah oo ku jira awoodda korantada ee gudaha wareegga godan. Si kale haddii loo dhigo, awoodda korantada ee dhammaan meelaha ku jira wareegga godan waa isku mid. Cabbirka awoodda korantada ee ku jirta wareegga godan waa isku mid sida awoodda korantada ee dusha sare ee wareegga.

Inta ay ka fog tahay dusha sare ee wareegga, awoodda korantada ayaa yaraanaysa meeshaas. Tani waxay ku salaysan tahay isle'egta farqiga awoodda korantada. V_ab = k Q/r, Halkee r = masaafada u dhaxaysa bartamaha kubadda ilaa meesha lagu xisaabiyo farqiga suurtagalka ahIyada oo ku saleysan isla'egtan, masaafada (r) waxay si liddi ku ah ugu dhigantaa farqiga suurtagalka ah (V_ab), sidaas darteed masaafada barta u dhaxaysa bartamaha kubadda ayaa sii yaraanaysa farqiga awoodda korontada ee u dhexeeya bartamaha kubadda iyo bartaas. Barta R waxay u dhowdahay bartamaha kubadda halka barta T ay ka fog tahay bartamaha kubadda, sidaa darteed farqiga suurtagalka ah ee u dhexeeya barta R iyo bartamaha kubadda ayaa ka weyn, halka farqiga suurtagalka ah ee u dhexeeya barta T iyo bartamaha kubadda uu ka yar yahay. Si kale haddii loo dhigo, awoodda korantada ee barta R ayaa ka weyn awoodda korantada ee barta T.

Fiiro gaar ah: Kala sooc u dhexeeya awoodda korantada leh farqiga awoodda korantada. Awoodda korontada laguma xisaabin karo qiimaha, halka farqiga awoodda korantada lagu xisaabin karo qiimaha iyadoo la adeegsanayo qaacidada V_ab = k Q/rHaddii goob koronto ku jirto meel bannaan, markaa dhibic kasta oo ku jirta booska waxay leedahay awood koronto, halka farqiga awoodda korontada lagu xisaabiyo isbarbardhigga laba dhibcood oo kala duwan. Si kale haddii loo dhigo, isla meeshaas waxaa jira awood koronto laakiin ma jiro farqi awood koronto ah oo halkaas yaal.

Jawaabaha saxda ah waa B iyo E.

5. Su'aalaha Imtixaanka Qaranka ee Fiisigiska SMA/MA U-ZC-2013/2014 No. 28
Wareega godka ah ee gudbiya korontada wuxuu leeyahay awood dhan 4 µC iyo gacan 10 cm ah sida ku cad sawirka. Weedhkee ku saabsan awoodda korantada (V) ee kubbadda ayaa sax ah?
A. V_A > V_B
B. V_B > V_A
C. V_A =V_B
D.V_A <V_C
E.V_B <V_C
Dood
Iyada oo ku saleysan sharraxaadda su'aasha lambarka 1, V_A =V_B, V_A > V_C iyo V_B > V_C.
Jawaabta saxda ah waa C.