lorenzkraft Flashcards

1
Q

Drei Finger Regel
D:
M:
Z:

A

D: Elektronen
M: Kraft
Z: Magnetfeld

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2
Q

Elektronen im Homogenen Magnetfeld

A

FL=Fz

e•N•B=m•v ²/r

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3
Q

Betrag spezifischer Elektronenladung

A

e/m= N/B•r

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4
Q

Geschw. Bestimmen?

A

Mit EES

e•u=1/2m•v ²

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5
Q

EES folgt

A

e/m=2U/r ² • B ²

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6
Q

Lorenzkraft= elektrische kraft

A

v•B=E

E=U/d

q kĂĽrzt sich

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7
Q

q•v•B=

A

Größe der Lorenz Kraft auf den Ladyngsträger bestimmen

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8
Q

Faustregel

A

Daumen in richtung Stromfluss (I)
Vier Finger zeigen verlauf Magnetischer Feldlinien

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9
Q

Technische Stromrichtung

+ zu -

A

Rechte Hand

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10
Q

Physikalische Stromrichtung

  • zu +
A

Linke hand

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11
Q

windungen

A

N

N=B•L/….

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12
Q

B•L•I

A

Wenn es um den LEITER geht

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13
Q

FL= q•v•B

A

Wenn es um EINZELNE geht

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14
Q

Leiterrahmen wirkende Lorenzkraft rechen:
FL= BIL

B mit?

A

B=μ0•μr•N•I/ L

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15
Q

I=

A

I=Q/t
Bzw.
I=q/t

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16
Q

FL= B•q/t•L

v=L/t

Von: v=s/t

A

FL=B•q•v
(Lorenzkraft auf EINZELNE Elektronen)