Fyzika 9 - Elektrické jevy 4 (napětí, proud, odpor)
Quiz
•
Physics
•
9th Grade
•
Hard

Věra Učitelka
Used 22+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektrický proud
se označuje písmenem U
je uspořádaný pohyb nabitých částic
může být kladný i záporný
je nezbytný pro život
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Základní jednotkou elektrického proudu je
1 V
1 W
1 A
1 C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektrický proud měříme
Ampérmetrem
Voltmetrem
pravítkem
elektrokopem
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ohmův zákon ve zkratce zní
U = R/I
I = U/R
R = U . I
P = U. I
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektrický odpor označujeme
U
R
I
E
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Odpor kovových vodičů se s rostoucí teplotou
zvětšuje
zmenšuje
nemění
mění se podle vzorce R = I . t
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
V jednoduchém obvodu je elektrický proud
na jednotlivých spotřebičích různý
všude stejný
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