Lesson 10 - Investigating Resistance Flashcards
1
Q
Why are fixed resistors used in most laptops?
A
To ensure a specific amount of current passes through the components
2
Q
What do variable resistors do to the current?
A
They allow it to flow better and allow the current to be changed and used for dimmer switches.
3
Q
What are the 3 main factors that affect resistance?
A
Material
Length
Thickness
4
Q
If you increase the length of the wire, will the resistance be more or less?
A
More
5
Q
If you select a material with many free electrons, will the resistance be more or less?
A
Less
6
Q
If you decrease the cross sectional area of the wire, will the resistance be more or less?
A
More
