Kontras Flashcards

(16 cards)

1
Q

Prietaisas kuris matuoja elektros sroves stipri ir i elektros grandine jungiamas nuosekliai

A

Amperimetras

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2
Q

Prietaisas kuris matuoja elektros itampa ir i elektros grandine jungiamas lygiagreciai

A

Voltmetras

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3
Q

Prietaisas kuris matuoja elektrine varza ir yra nejungiamas i elektrine grandine

A

Ommetras

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4
Q

Tai fizikinis dydis apibudinant laidininko savybe priešinantis elektros srovei.

A

Elektrine varža

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5
Q

Fizikinis dydis rodantis kokio didumo elektros krūvis pratekejo laidininko skerspjūviu per 1s

A

Sroves stipris I

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6
Q

Preitaisas stoves stipriui reguliuoti, keiciant grandines varža

A

Reostatas

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7
Q

Preitaisas stoves stipriui reguliuoti, keiciant grandines varža

A

Reostatas

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8
Q

Tai elektros sroves tekejimo pasipriesinimas, matuojamas omais.

A

Varžas

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9
Q

Tai jėga, stumianti elektros srove, matuojamas voltais

A

Elektrine įtampa

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10
Q

Medziagos pasipriesinimas elektros srovei, matuojamas omais metru (Ω·m).

A

Savitoji varža

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11
Q

Sroves stipris

A

I=U:R (A)

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12
Q

Įtampa

A

U=I*R (V)

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13
Q

Varža

A

R=U:I (Ω)

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14
Q

l-laido ilgis
S- laido skresmens plotas
ρ - savitoji varža

A

R= ρ*l
—————
S

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15
Q

Kai elektros grandine tekanti srove per stipri i grandine ijungiamas

A

Varžas arba rezistorius

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16
Q

Kai elektros grandine tekanti srove per stipri i grandine ijungiamas

A

Varžas arba rezistorius