Izibonelo Eziyi-8 Zezinkinga Zamandla Kagesi
1. Ukushaja kukagesi kuze kufike ku-1 I-Coulomb ukudlula ngentambo yomqhubi umzuzwana owodwa. Kukhulu ugesi wamanje kuyinto…..
Ingxoxo
Kuyaziwa ukuthi:
Ishaja (Q) = 1 Coulomb
Isikhawu sesikhathi (t) = 1 imizuzwana
Kubuziwe: Amandla kagesi
Impendulo:
I = Q / t = 1 / 1 = 1 Coulomb/second = 1 Ampere
2. Ugesi wama-Ampere ama-2 ugeleza ngentambo imizuzwana eyi-8. Thola ubukhulu beshaja edlula endaweni ethile kanye nenani lama-electron kuleyo shaja!
Ingxoxo
Kuyaziwa ukuthi:
Amandla kagesi (I) = 1 Ampere
Isikhawu sesikhathi (t) = 2 imizuzwana
Kubuziwe: ukushaja (Q) kanye nenani lama-electron (e)
Impendulo:
Ifomula yamandla kagesi:
I = Q/t
Incazelo yefomula: I = ugesi wamanje, Q = ukushaja kukagesi, t = isikhathi esiphakathi
Ishaja kagesi:
Q = I t = (2 Ampere)(imizuzwana engu-8) = 16 Coulombs.
Ishaja ye-electron eyodwa ingu-1,6 x 10-19 I-Coulomb ukuze ishaja engu-16 I-Coulombs ibe nama-electron angu-16 C / 1,6 x 10-19 I-Coulomb = 10 x 1019 i-elekthronikhi.
3. 10 mA = …… Ampere?
Ingxoxo
I-Ampere eyi-1 = ama-Ampere ayi-1000 milli
I-milliampere eyi-1 = 1/1000 Ampere
Ama-millimitha ayi-10 = 10/1000 Ama-amps = 1/100 Ama-amps = 1/102 Ama-Ampere = 10-2 I-Ampere = 0,01 I-Ampere
4. Bheka isithombe!
– Thola indlela kagesi ohamba ngayo!
– Thola indlela yokunyakaza kwama-electron!
Ingxoxo
Ugesi usuka kumandla aphezulu uye kumandla aphansi. Ngokusekelwe kumdwebo, isiqondiso sogesi siphambene newashi.
Isiqondiso sokunyakaza kwama-electron sisuka epalini elibi siye epalini elihle. Ngokusekelwe esithombeni, sihamba ngokwewashi.
5. Ugesi ongu-10 A ugeleza ngomqhubi imizuzu emi-2. Inani lokushaja kukagesi eligeleza ngomqhubi...
A. 5 Coulombs
B. 12 Coulombs
C. 20 Coulombs
D. 1200 Coulombs
Ingxoxo
Kuyaziwa ukuthi:
Amandla kagesi (I) = 10 Ampere
Isikhawu sesikhathi (t) = imizuzu emi-2 = imizuzwana emi-2 x engama-60 = imizuzwana eyi-120
Kubuziwe: Inani lokushaja kukagesi okugeleza kumqhubi
Impendulo:
Ifomula yamandla kagesi:
I = q/t
Incazelo: I = ugesi wamanje, q = ukushaja kukagesi, t = isikhathi esiphakathi
Ishaja kagesi:
q = I t = (10)(120) = 1200 Ama-Coulomb
Impendulo efanele ngu-D.
6. Uma ama-Coulombs angu-60 kagesi egeleza engxenyeni yentambo yokuqhuba ngemizuzu emi-5, khona-ke ugesi...
A. 0,2 Ama-Ampere
B. 0,5 Ampere
Ama-Ampere angu-C. 3
D. 6 Ampere
Ingxoxo
Kuyaziwa ukuthi:
Isikhawu sesikhathi (t) = imizuzu emi-5 = imizuzwana emi-5 x engama-60 = imizuzwana engama-300
Ishaja kagesi (Q) = 60 Ama-Coulomb
Kubuziwe: Ugesi wamanje (I)
Impendulo:
Amandla kagesi:
I = Q/t
Mina = 60/300
I = 0,2 Coulomb/isekhondi
I = 0,2 Ampere
I-Coulomb/yesibili ibizwa nangokuthi i-Ampere.
Impendulo efanele ngu-A.
7. Iyunithi ye-SI yamandla kagesi ingu…
I-A. ampere
I-volt ye-B
C. coulomb
D. ohm
Ingxoxo
Uhlelo Lwamazwe Ngamazwe Lweziyunithi lwenani eliyisisekelo lamandla kagesi yi-Ampere.
Impendulo efanele ngu-A.
8. Ugesi okhiqizwa yi-dynamo ungaboniswa kugrafu...
Ingxoxo
Incazelo yegrafu: I = ugesi wamanje, t = isikhathi esiphakathi
I-dynamo ikhiqiza ugesi oqondile (DC), kuyilapho ijeneretha kagesi ikhiqiza ugesi oshintshanayo (AC). Igrafu yogesi oqondile iboniswe empendulweni D, kanti igrafu yogesi oshintshanayo iboniswe empendulweni B.
Impendulo efanele ngu-D.
