9 - Definitions Flashcards
1
Q
P.d
A
The the measure of energy being transferred from charge carriers
2
Q
1V is equal to
A
1JC^-1
3
Q
Voltmeters( used to measure p.d) are always considered connected in
A
Parallel
4
Q
EMF
A
The measure of the transfer of energy to charge carriers
5
Q
V =
A
Q
6
Q
E =
A
Q
7
Q
Electron gun: electrons escape because
A
A piece of filament is heated and electrons gain energy = thermionic emission.
8
Q
The work done on an election is equal to its
A
Gain in KE
9
Q
Resistance
A
I
10
Q
1 ohm is equal to
A
1 VA^-1
11
Q
Ohm’s Law
A
A metallic conductor with constant temp has a current directly proportional to its p.d
12
Q
A battery means
A
2 or more cells connected end to end. If they are placed the wrong way, you have to subtract the voltage.
13
Q
Increased temperature gives particles more
A
Energy
