Part 2 Flashcards

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1
Q

r

A

rezistenta interna a sursei

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2
Q

E

A

tensiunea electromotoare a bateriei

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3
Q

Bilantul tensiunilor

A

E=U+u

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4
Q

legea lui Ohm pentru tot circuitul

A

I=E/R+r

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5
Q

E formula

A

I* (R+r)

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6
Q

Aplicatia 1 scurtcircuitul

A

I scurt = E/r (Max)

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7
Q

Aplicatia 2 in gol

A

I=0;
E=U;

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8
Q

Gruparea rezistorilor in serie

A

Au aceeasi tensiune
Us=U1+U2+U3+…+Un
= IR1+IR2+….IRn
= I
R serie

Deco R serie = R1+R2+R3+….

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9
Q

Gruparea rezistorilor in paralel

A

Au aceeasi intensitate
I=I1+I2+…+In
I=U/R paralel
Deci 1/R paralel = 1/R1 +….1/Rn
2 rezistori: R paralel = R1*R2/R1+R2

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