Physics Flashcards
1
Q
What is a ohmic conductor
A
A component with constant resistance
2
Q
What happens to the resistance of a thermistor as temp increases
A
The resistance decreases
3
Q
Series
A
Potential difference is shared
Current is same everywhere
Resistance adds up
4
Q
Parallel
A
Potential difference is the same over all components
Current is shared between branches
Adding a resistor reduces the total resistance
5
Q
National grid
A
High p.d and low current
6
Q
Electric fields point:
A
From positive to negative
7
Q
What is internal energy
A
Internal energy is the sum of the total energy stored by the particles making up a system
8
Q
Mega
A
10-6
9
Q
Kilo
A
10-3
10
Q
Deci
A
10- -1
11
Q
Milli
A
10- -3
12
Q
Micro
A
10- -6
