
Dipole RC
Authored by الاستاذة بنعجيبة
Physics
9th - 12th Grade
Used 1+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La relation entre l'intensité de courant i et la charge q est
i = dq/dt
i= -dq/dt
Answer explanation
i=dq/dt quelque soit la nature de courant
si le générateur est idéale de courant on écrit
I = Q/t
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La relation entre la charge QA et la tension UAB
qA= UAB /C
c = qA .UBA
qA = c .UAB
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans le cas d'un courant continue d'intensité I on a
UAB = C.t /I
UAB = I.t /c
UAB = C.t .I
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La constante de temps est 0.25 ms pour un dipole RC telque R = 2,5 K la valeur de sa capacité e
O,1 µF
10 µF
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La capacité de deux condansateurs montés en série est
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
par analyse dimentionnelleon montre que l'équation différentielle d'n dipole RC lors d'un décharge s'écrit
R dUR/dt + c UR = 0
R c dUR/dt + UR =0
dUR/dt + RC UR =0
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
L'expression de l'énérgie éléctriqueemmagasinée dans un codansteur est
E = 1/2 q^2/c
E = 1/2 C * V
E= 1/2 q c^2
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