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Curentul electric. Marimi fizice. Unitati de masura

Authored by Corfus Maria

Physical Ed

8th Grade

Used 40+ times

Curentul electric. Marimi fizice. Unitati de masura
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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Tensiunea electrica se masoara in:

amperi

volti

ohmi

kiloohmi

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Rezistenta electrica are ca unitate de masura :

amperul

voltul

ohmul

milivoltul

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Intensitatea curentului electric se masoara in:

amperi

volti

ohmi

kilovolti

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezistenta electrica se defineste prin relatia:

R=IUR=\frac{I}{U}

R=UIR=U\cdot I

R=UIR=\frac{U}{I}

nici una din relatiile anterioare

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ampermetrul se monteaza intr-un circuit astfel:

in serie

in paralel

in serie si in paralel

in serie sau in paralel

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Voltmetrul se leaga intr-un circuit astfel:

in serie

in paralel

in serie si in paralel

in serie sau in paralel

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Legea lui Ohm pe o portiune de circuit poate fi exprimata matematic prin relatia:

I=RUI=\frac{R}{U}

I=URI=\frac{U}{R}

U=RIU=\frac{R}{I}

I=URI=U\cdot R

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