Tri Lekci Flashcards

(15 cards)

1
Q

Zakon za zapazuvanje na energijata

A

-Energijata ne moze nitu da se sozdade nitu da iscezne. Taa samo se pretvara od eden vid vo dr vid na energija.
-Pri sekoe pretvoranje, vkupnata energija po pretvaranjeto e ednakva na vkupnata energija pred toa.

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2
Q

Primeri:

A

Dzebna svetilka HEMISKA—>svetlinska—>toplinska

Televizor
ELEKTRICNA—>zvucna—>Svetlinska —>toplinska

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3
Q

Kade se sozdava elektricnata energija

A

-Hidrocentrala
-termo centrala
-Gasna centrala
-Nuklearna centrala
-Veternici
-Fotovlataicni kelii

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4
Q

Sto e generator

A

Toa e masina koja mehanickata rabota ja pretvara vo struja

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5
Q

Princip za rabota na generatorot

A

Elektricna indukcija

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6
Q

Delovi na generatorot

A

-Stator ( magnet )
-rotor ( namotka )
-komutator
-dve cetkici

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7
Q

Primena na generatorot

A

-Hidrocentrala
-termo centrala
-gasna centrala
-nuklearna centrala
-veternici

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8
Q

Sto e alternator

A

-Generatorot na neizmenicna struja se vika alternator

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9
Q

Vidovi struja

A

-Edno nasocna struja ➖
-Naizmenicna struja 〰️

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10
Q

Prenos na strujata

A

Hidrocentrala–> transformator ( visok napon mala jacina na strujata )—> dalnovod—>trafostanica ( ja deli strujata )—> transformator ( nizok napon od 220V *pogolema od jacina na struja)➡️ glaven dovod na elektricnata struja➡️ tabla so osiguruvaci i broilo➡️ elektricna instalacija vo domot

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11
Q

Sozdavanje na struja od parea sto se dvizi

A

-termo centrala
-gasna centrala
-nuklearna centrala

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12
Q

Termocentrala:

A

Baseni na jaglen➡️ termocentrala paren kotel ( H2O )➡️ vodena parea ( minuva niz cevki )➡️ generator ( gi vrti perkite na generatorot )➡️se sozdava struja➡️ 💡 sveti

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13
Q

Gasna centrala:

A

Gas na azot➡️ gasna centrala ( paren kotel )➡️ vodena parea ( minuva niz cevki )➡️ generator ( gi vrti perkite na generatorot)➡️ se sozdava struja ➡️💡 sveti

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14
Q

Inducirana struja?

A

-Sekojpat se javuva vo zatvoren provodnik koga toj se naoga vo promenlivo magnentno pole

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15
Q

Nuklearna centrala

A

Bazeni na voda ( reki ezera morinja okeani)➡️ nukelarna centrala nuklearen reaktor kontrolni pracki ( borovi i grafitni)➡️ vodena parea ( minuva niz cevki )➡️ generator ( gi vrti perkite na generatorot)➡️ se sozdava struja ➡️💡 sveti

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