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Elektrotehnika alused (MET297) [Elektritehnika] 2024 - A. Mandre

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Valige igale suurusele mõõtühik.

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emj

Magnetväljas magnetvootihedusega B = 0,5 T on metall-latt pikkusega l = 0,1 m.

Latis indutseeritakse elektromotoorjõud E = 5 V. Arvutage lati liikumiskiirus v.
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emj

Magnetväljas magnetvootihedusega B = 0,5 T on metall-latt pikkusega l = 0,1 m.

Latti läbib vool I = 5 A. Arvutage latile mõjuv jõud F.
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skeem1

61 V, = 3 A, R= 3 Ω ja U= 22 V. Leida R3.

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roop2

U = 80 V, I = 12 A, R1 = 40 Ω. Leida R2.

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skeem1

60 V, = 3 A, R= 10 Ω ja R= 7 Ω. Leida R3.

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roop

U = 60 V, I = 15 A, I1 = 3 A ja R2 = 30 Ω. Leida R3.

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skeem1

80 V, = 5 A, R= 1 Ω ja U= 15 V. Leida R3.

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1. Milliseid elektrilisi suurusi kasutatakse alalisvooluga elektriahelate iseloomustamiseks?

2. Mille poolest erinevad teineteisest takistite jadaühendus ja rööpühendus?

3. Mis on kõige tähtsam elektriahela koostamisel?

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