7 predavanje Flashcards

1
Q

H

A

jakost magnetskog polja A/m

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2
Q

B

A

magnetska indukcija B= µ * H

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3
Q

µ

A

magnetska premeabilnost µ = µ0 * µ r

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4
Q

µ0

A

4π*10 na-7

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5
Q

µ r

A

1

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6
Q

desna ruka magnetsko polje

A

palac smjer magnetskog polja prsti savijeni smjer elek struje

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7
Q

magnetski tokΦ

A

Φ =∫∫BdS ako je b konst na S onda Φ=BS

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8
Q

ulancani magnetski tokψ

A

ψ=N*Φ n-broj zavoja

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9
Q

zakon elektromagnetske indukcije

A

e=-dΨ/dt=-N*(dΦ/dt)

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10
Q

desna kod ems

A

prsti struje i ems a palacΨ

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11
Q

sila na naboj u gibanju

A

F=q(v x B)=qBvSIN kuta

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12
Q

R nadi

A

Fmag=Fcf—->q* v B=m * v na2/R—->R=(m v)/(q B)

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13
Q

u vodicu
ems

A

e=∫(v x B)dl=B l* v * sin kuta*cos kuta

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14
Q

diferencijalna sila

A

F=I ∫(dLxB)=B I L

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15
Q

u centru kruzne petlje H biot savartov zakon

A

H=I/2a file:///D:/slike/E120%20Predavanja%2007%20-%20korigirano%2013.12.2023.pdf str16

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16
Q

okomito iznad i

A

H=(I/4πa) *sin kuta

17
Q

izvan i

A

H=(I/4πa)*(sin kuta ukupni -sin kuta izmisljeni

18
Q

ako je iznad

A

H=(I/4πa)*(sin kuta1 +sin kuta2) ako je pravi kut H=I/2πa

19
Q

ako su na istom pravcu

A

H=0

20
Q

sila izmedu 2 vodica

A

F=μ0(I1I2/2πa)

21
Q

ako je kruznica za biatrov zakon
ili beskonacni vodic

A

H=I/2πa