Chapter 6.1 Flashcards
1
Q
What is the simple definition of current
A
-it is defined as the flow of positive charge
2
Q
What is conductance in relation to resistance
A
-it is the reciprocal of resistance
3
Q
Is deionized water a good conductor?
A
- no
- > because it has such a low concentration of ions
- > that it can be considered an insulator
4
Q
How does the direction of current relate to the direction of electron flow
A
- electrons flow from a point of lower electric potential energy to a point of higher electric potential energy
- > because we are talking about a negative charge here
- current flows from a point of higher electric potential energy to a point of lower electric potential energy
- > because we are talking about a positive charge here
5
Q
What is electromotive force? Is it actually a force?
A
- it is when no charge is moving between the two terminals of a cell that are at different potential values
- > the voltage is referred to as the electromotive force
- > it isn’t actually a force
-it is the energy require to result in a current