Resistance Flashcards
1
Q
What’s the formula for resistance
A
Resistance = potential difference / current
2
Q
Defenition of resistance
A
The opposition of the flow of electric current, it slows down movement of electrons
3
Q
Resistance is constant if …
A
The temperature does not change
4
Q
Higher resistance =
A
Higher resistance = more energy transferred
5
Q
Resistors transfer less … energy
A
Electrical
6
Q
Current through a resistor is directly proportional to
A
Current through a resistor is directly proportional to
The potential difference
7
Q
What is a Ohmic conductor ?
A
A resistor, where the resistance does not change, if you increase the current
8
Q
A
9
Q
Why is a filament lamp NOT an ohmic conductor
A
Because it is not directly proportional to the potential difference
