EMV

Quiz
•
Physics
•
9th Grade
•
Medium
ST EM
Used 17+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kāpēc radioaparāts vienlaikus neuztver visu raidstaciju raidītos elektro-magnētiskos viļņus?
Tāpēc ka skaļruņi parasti ir 2 vai 1 gab.
No pārslodzes var sabojāt transzistorus.
Svārstību kontūrs var rezonēt tikai uz viena viļņa.
Jo klausoties vairākas stacijas vienlaikus neko nevarēs saprast.
Katrs radioaparāts pēc licences var atskaņot vienu staciju.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kāpēc parastie kompasi nav derīgi Zemes magnētisko polu tuvumā?
Polos ir zema temperatūra
Polos ir augsts spiediens
Rādīs uz visām pusēm
Polos ir jāpērkt kompasu licences
Polos nav EMV
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
8.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kāpēc kādreiz antenas telefoniem bija garas, tad palika īsākas un tagad tās vispār redzamas?
Iemācījās taisīt mazas antenas.
Jo garāki viļņi, jo garāka ir vajadzīga antena.
Nebija ērti, tās bieži lūza un locījās.
Cilvēki tagad biežām izmanto telefonu citiem nolūkiem nevis telefona sarunām.
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