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Fysik > Elektricitet och Magnetism TDS 8.1 > Flashcards

Elektricitet och Magnetism TDS 8.1 Flashcards

1
Q

Spänning

A

När det skapas skillnad i laddning mellan polerna

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2
Q

Ström

A

Om polerna med spänning kommer i kontakt med varandra så att elektroner kan bilda en ström

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3
Q

Resistans

A

Elektriskt motstånd i kretsen som begränsar elektronernas flöde

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4
Q

Volt

A

Enhet för spänning

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5
Q

Ampere

A

Enhet för ström

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6
Q

Ohm

A

Enhet för resistans

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7
Q

Ohms lag

A

Förklarar sambandet mellan resistans, ström, spänning

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8
Q

Vilka fyra egenskaper påverkar resistansen hos elektriska ledare?

A

Tjocklek, längd, material, temperatur

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9
Q

Vilken riktning har elektronerna i en krets?

A

Minus till plus

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10
Q

Vilken riktning säger man att strömmen har i en elektrisk krets?

A

+ till -

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11
Q
A
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Fysik (4 decks)

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