Isayensi

Izibonelo ezi-5 zezinkinga zokuguqulwa kweyunithi yokushisa

1. Izinga lokushisa lento lingu-122°F, uma lilinganiswa esikalini se-Celsius,...

A. 323°C

B. 122°C

C. 50°C

D. 40°C

Ingxoxo

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Izibonelo Ezi-7 Zezinkinga Zokumelana

1. Ngokusekelwe esithombeni se-resistor ohlangothini, ukumelana kwayo...

A. 542 Ω + 10%

B. 542 Ω + 20%

C. 5400 Ω + 5%

D. 5400 Ω + 20%

Ingxoxo

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Izibonelo ezi-4 zemibuzo ye-solenoid coil

1. Izici ezithonya ubukhulu bamandla kagesi ku-coil yilezi...

A. nciphisa i-voltage futhi wandise inani lemigqa

B. khulisa inani lokujika bese ufaka umongo wensimbi othambile ngaphakathi kuwo

C. khulisa amandla kagesi bese welula ikhoyili

D. nciphisa amandla amanje futhi unciphise inani lokujika

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Izibonelo ezi-5 zezinkinga zokungeniswa kwamagnetic

1. Indlela efanele yomugqa wamandla iboniswa yisibalo...

Ingxoxo

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Izibonelo eziyi-16 zemibuzo ewuzibuthe

1. Uma ucezu lukamazibuthe lunqunywa lube yizicucu ezintathu ezilinganayo, khona-ke izingongolo ezifanele zezingcezu zikamazibuthe...

Ingxoxo

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3 Izibonelo zemibuzo yesekethe ye-resistor

1. Uchungechunge lwama-resistor angezansi anokumelana okulingana kakhulu...

Ingxoxo

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Izibonelo eziyi-8 zemibuzo ngamandla kagesi kanye namandla

1. Isibani sikagesi esiphawulwe ngo-220 V – 5 A sisetshenziswa imizuzu engama-30, ngakho-ke inani lamandla adingekayo esibanini…

A. 33 kJ

B. 330 kJ

C. 1.980 kJ

D. 19.800 kJ

Ingxoxo

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Izibonelo eziyi-11 zoMthetho Wokuqala kaKirchhoff

1. Bheka isithombe esilandelayo!

Uma mina ₁ = 5A, mina ₂ = 3 A, mina ₃ = 6 A, usayizi ka-I ₄ ...

A. 2A

B. 8A

C. 9A

D. 14A

Ingxoxo

Umthetho Wokuqala kaKirchhoff uthi inani lamandla kagesi angena endaweni yegatsha lilingana nenani lamandla kagesi aphuma endaweni yegatsha.

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2 Izibonelo zama-conductor nama-insulator

1. Izinto ezivikela ugesi...

A. ithusi kanye ne-zinc

B. ithusi kanye ne-porcelain

I-C. mica kanye ne-zinc

D. mica kanye ne-porcelain

Ingxoxo

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Izibonelo ezi-6 zemibuzo yoMthetho ka-Ohm

Funda futhi izibonelo zomthetho ka-Ohm kanye nezinto zomthetho ka-Ohm .

1. Ithebula lokulinganisa umehluko ongaba khona kanye namandla kagesi

Ngokusekelwe kuthebula, ubudlelwano phakathi kuka-V, u-I, no-R...

A. Uma u-V emkhulu, u-I no-R abakhulu bahlala befana.

B. Inani lika-R lilingana no-I no-V

C. Inani lika-R liwumkhiqizo ka-V no-I.

D. Inani lika-I lilingana no-R futhi lilingana ngokuphambene no-V.

Ingxoxo

Funda kabanzi