Unit 2 - Module 1 DEFINITIONS

Electric current

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  • Created by: Louisa
  • Created on: 04-03-13 18:22
Charge (Q)
=current*time; =I*t
1 of 6
Coulomb (C)
1A*1s; total charge supplied by a current of 1A in 1s
2 of 6
Kirchhoff's 1st Law
The sum of currents entering any junction is always equal to the sum of the currents leaving the junction
3 of 6
Electron drift velocity (v)
=I/(nAe) where I is current, n is number density, A is cross-sectional area of wire and e is electron charge
4 of 6
Conductor
Contains a large amount of conduction electrons that are free to move within the material; large number densities
5 of 6
Insulator
Contains few/no conduction electrons; a very low number density
6 of 6

Other cards in this set

Card 2

Front

1A*1s; total charge supplied by a current of 1A in 1s

Back

Coulomb (C)

Card 3

Front

The sum of currents entering any junction is always equal to the sum of the currents leaving the junction

Back

Preview of the back of card 3

Card 4

Front

=I/(nAe) where I is current, n is number density, A is cross-sectional area of wire and e is electron charge

Back

Preview of the back of card 4

Card 5

Front

Contains a large amount of conduction electrons that are free to move within the material; large number densities

Back

Preview of the back of card 5
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