Current And Resistance Flashcards

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0
Q

Vd

A

Drift speed

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1
Q

I

A

Current

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2
Q

ie

A

Electron Current

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3
Q

Tau t

A

Mean time between collisions

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4
Q

A

A

Ampere

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5
Q

J

A

Current density

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6
Q

R

A

Resistance

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7
Q

J=

A

J=I/A

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8
Q

I=

A

I= e * ie

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9
Q

Q=

A

Q=I *

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10
Q

♎️

A

Ohm

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11
Q

ie definition

A

Rate of electron flow

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12
Q

Ne=

A

ie *

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13
Q

Conservation of current

A

The current is the same at any two points in a wire

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14
Q

Kirchoffs junction law

A

SUM I in = SUM I out

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15
Q

More collisions mean….

A

A higher resistivity p and and a lower conductivity

16
Q

Vd=

A

Vd= etE/m

17
Q

ie=

A

ie= ne * A * Vd

18
Q

Conductivity =

A

Conductivity = ne* e^2* t / m

19
Q

Resistivity =

A

Resistivity = 1/conductivity

20
Q

J=

A

J= ne * e * Vd = E * Conductivity

21
Q

Ewire=

A

Ewire = Vwire / L

22
Q

(Resistors) I=

A

I = Vwire/R

23
Q

R=

A

R=pL/A