Ifiziksi Yesikole Samabanga Aphezulu

Ifomula Yokumelana Nogesi

Esihlokweni esiphathelene nomthetho ka-Ohm, kutholakale ifomula echaza ubudlelwano phakathi kwe-voltage kagesi (V), i-electrical current (I) kanye nokumelana kagesi (R). Ngokwezibalo, ivezwa nge-equation:

Lesi sibalo sibonisa ukuthi ukumelana kukagesi (R) kuhambelana ngqo ne-voltage kagesi (V) futhi kuhambisana ngokuphambene nomsinga kagesi (I). Uma i-voltage kagesi inkulu, ukumelana kukhulu. Ngokuphambene nalokho, uma umsinga kagesi umkhulu, ukumelana kukhulu. Lesi sibalo sichaza umthetho we-Ohm kuphela uma ukumelana (R) kungaguquki. Uma ukumelana kungaguquki, lesi sibalo asichazi umthetho we-Ohm kodwa sichaza ukumelana komqhubi.

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Izibonelo ezi-5 zemibuzo engaba khona kagesi

1. Nquma amandla kagesi endaweni eyi-1 cm ukusuka ekushajeni q = 5,0 μC. I-constant kaCoulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C.
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Kuyaziwa ukuthi:
Ibanga ukusuka ekushajeni (r) = 1 cm = 1/100 m = 0,01 m = 10^-2 m
Ishaja (q) = 5,0 μC = 5,0 x 10^-6 I-Coulomb
Kubuziwe: Amandla kagesi (V)
Impendulo:

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11 Izibonelo zezinkinga ze-capacitor - izifunda ezilandelanayo nezihambisanayo

1. Okuthathu i-kapasitor kuxhunywe ngochungechunge oluhambisanayo njengasesithombeni esingezansi. Uma u-C₁ = 2 μF, C₂ = 4 μF, C₃ = 4 μF, khona-ke umthamo wokufaka esikhundleni u…
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Kuyaziwa ukuthi:
I-Capacitor C₁ = 2 μF
I-Capacitor C₂ = 4 μF
I-Capacitor C₃ = 4 μF
Kubuziwe: Umthamo wokufaka esikhundleni (C)

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Isibonelo Semibuzo Yamandla Angase Abe Khona Kagesi

1. I-electron isheshiswa kusukela ekuphumuleni ngomehluko ongaba khona wama-volts ayi-12. Iyini inguquko emandleni angase abe khona e-electron?
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Kuyaziwa ukuthi:
Umthwalo I-electron e-1 (e) = -1,60 x 10^-19 I-Coulomb
Umehluko wamandla kagesi = i-voltage kagesi (V) = 12 Volts
Kubuziwe: Ushintsho kumandla e-electron potential (ΔEP)
Impendulo:
ΔEP = q V = (-1,60 x 10^-19 C(12 V) = -19,2 x 10^-19 Joule
Uphawu olubi lusho ukuthi amandla kagesi angase abe khona iyancipha. Uma iseduze nepuleti elishajeke kabi, amandla kagesi e-electron asezingeni eliphezulu. Ngemva kokufika eduze kwepuleti elishajeke kahle, amandla kagesi e-electron asezingeni eliphansi.

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Izibonelo ezi-4 zezinkinga ze-Electric Flux

1. Insimu kagesi ka-8000 N/C oqondile endaweni eyisikwele enobuso obuyi-10 m². Nquma ukugeleza kukagesi edlula endaweni yesikwele!
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Kuyaziwa ukuthi:
Insimu kagesi (E) = 8000 N/C
Indawo engaphezulu (A) = 10 m²
θ = 0^o (imigqa kagesi ihambisana nemigqa evamile)
Kubuziwe: Ugesi ogelezayo (Φ)
Impendulo:

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Izibonelo Ezi-7 Zezinkinga Ze-Angular Momentum

Umfutho We-Angular

1. Into inayo umzuzu wokungakhathali 2 kg m² futhi ijikeleza ku-axis eqondile nge ijubane le-angular I-rad/s eyodwa. Malini? umfutho we-angular leyo nto?
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Kuyaziwa ukuthi:
Isikhathi sokungakhathali (I) = 2 kg m²
Ijubane le-angular (ω) = 1 rad/s
Kubuziwe: Umfutho we-Angular (L)
Impendulo:
Ifomula yomfutho we-angular:

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Izibonelo ezi-5 zemibuzo yamandla e-kinetic ajikelezayo

1. Izinto zinayo umzuzu wokungakhathali 1 kg m² ijikeleza ku-axis eqondile nge ijubane le-angular I-rad/s eyodwa. Malini? amandla e-kinetic ajikelezayo leyo nto?

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Kuyaziwa ukuthi:
Isikhathi sokungalali kahle (I) = 1 kg m²
Ijubane le-angular (ω) = 2 rad/s
Kubuziwe: Amandla e-kinetic ajikelezayo (EK)
Impendulo:
Ifomula yamandla e-kinetic ajikelezayo:

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Izibonelo ezi-5 zomthetho wesibili kaNewton wokunyakaza okujikelezayo

1. Intambo igoqwe onqenqemeni lwesilinda esingenalutho bese kuthi ukuphela kwentambo kudonswe ngamandla u-F ukuze isilinda sijikeleze ku-axis yaso. umzuzu wesitayela ingu-2 Nm futhi umzuzu wokungakhathali isilinda singama-1 kg m², nquma ukusheshisa kwe-angular kwesilinda!
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Kuyaziwa ukuthi:
Isikhathi samandla (τ) = 2 Nm
Isikhathi sokungakhathali (I) = 1 kg m²
Kubuziwe: Ukusheshisa kwe-angular kwesilinda!
Impendulo:
Ifomula yomthetho wesibili kaNewton yokunyakaza kokujikeleza:

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Izibonelo ezingu-25 zemibuzo yesikhathi sokungahlali kahle

Isikhathi Sokungabi Naso Isisindo Senhlayiya

1. Ibhola elinobunzima obungamagremu ayi-100 lixhunywe entanjeni enobude obungamasentimitha angu-30 njengoba kuboniswe esithombeni. Isikhathi sokungalali kahle ibhola elizungeze i-axis AB...
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Kuyaziwa ukuthi:
I-axis yokujikeleza yi-AB
Isisindo sebhola (m) = 100 amagremu = 100/1000 = 0,1 amakhilogremu
Ibanga lebhola ukusuka ku-axis yokujikeleza (r) = 30 cm = 0,3 amamitha
Kubuziwe: Isikhathi sokungakhathali kwebhola (I)

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Izibonelo eziyi-10 zemibuzo yesikhathi samandla

1. Ubude benduku u-AB bungamamitha ama-2 kanti ubukhulu bamandla u-F bungama-Newton ayi-10. Thola umzuzu wesitayela ngasephuzwini A kanye nesiqondiso sokuzungeza kwenduku AB!
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I-axis yokujikeleza itholakala endaweni A.

Kuyaziwa ukuthi:
Amandla (F) = 10 Newton
Ibanga AB (r)_AB) = 2 amamitha
I-Force F yakha i-engeli engu-90^o ngokumelene nenduku AB.
Ingalo yamandla (l) = r_AB ngaphandle 90^o = (amamitha ama-2)(1) = amamitha ama-2
Kubuziwe: Isikhathi samandla mayelana nephuzu A kanye nesiqondiso sokuzungeza kwenduku AB

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