Electricitate BAC

Electricitate BAC

9th - 12th Grade

40 Qs

quiz-placeholder

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Electricitate BAC

Electricitate BAC

Assessment

Quiz

Physics

9th - 12th Grade

Practice Problem

Hard

Created by

Bianca Necula

Used 61+ times

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40 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Care este definitia intensitatii curentului electric?
(variante multiple)

 I = ΔQΔtI\ =\ \frac{\Delta Q}{\Delta t}  

 I = URI\ =\ \frac{U}{R}  

 I = NeΔtI\ =\ \frac{N\cdot e}{\Delta t}  

 I = URI\ =\ U\cdot R  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Care este definitia tensiunii electrice?

U = IRU\ =\ I\cdot R

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

U = LΔQU\ =\ \frac{L}{\Delta Q}

U = ΔQLU\ =\ \frac{\Delta Q}{L}

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Pentru un conductor liniar, rezistenta electrica este:


R = ρlSR\ =\ \frac{\rho l}{S}

R = ρSLR\ =\ \frac{\rho S}{L}

R = ρVR\ =\ \rho V

R = 4ρlπd2R\ =\ \frac{4\rho l}{\pi d^2}

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Legea lui Ohm pentru o portiune de circuit:

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

I = ER+rI\ =\ \frac{E}{R+r}

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

R = UIR\ =\ U\cdot I

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Legea lui Ohm pentru intreg circuitul:

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

I = ER+rI\ =\ \frac{E}{R+r}

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

 E = IR+rE\ =\ \frac{I}{R+r}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Momentul in care apare intensitatea electrica maxima intr-un circuit:

scurtcircuit

mers in gol

este legat in serie un voltmetru ideal

se deschide un intrerupator prin portiunea respectiva de circuit

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Intensitatea de scurtcircuit

Er\frac{E}{r}

EI\frac{E}{I}

RE\frac{R}{E}

UU

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