Potential Dividers Flashcards
1
Q
What is a potential divider made up of?
A
2 resistors in a line between the positive and negative rails
2
Q
What are potential dividers used for in a circuit?
A
Adjusting the voltage
3
Q
If the both resistors are the same size, what is the voltage out?
A
Half of the voltage in
4
Q
If the top resistor is larger than the bottom resistor, what is the voltage out?
A
Less than half
5
Q
If the top resistor is smaller than the bottom resistor, what is the voltage out?
A
More than half of
6
Q
Is voltage out fixed? Or does it change?
A
It is fixed. Doesn’t not change because the resistors are fixed
7
Q
If we used a sensor e.g. LDR, can we vary or change the voltage out then?
A
Yes
