Delmar's Unit 5 Flashcards
What are two common uses for resistors?
To limit the flow of current through a circuit and to produce a voltage divider.
What is a fixed resistor?
A resistor with one ohmic value
What is tolerence?
The plus or minus limits of a resistor’s ohmic value.
What factors determine the resistance of wire-wound resistors?
Material. Diameter. Length.
In resistance color code, what does a black band signify?
0
In resistance color code, what does a brown band signify?
1
In resistance color code, what does a red band signify?
2
In resistance color code, what does a orange band signify?
3
In resistance color code, what does a yellow band signify?
4
In resistance color code, what does a green band signify?
5
In resistance color code, what does a blue band signify?
6
In resistance color code, what does a violet band signify?
7
In resistance color code, what does a gray band signify?
8
In resistance color code, what does a white band signify?
9
In resistance color code, what does a silver band signify?
+-10%
In resistance color code, what does a gold band signify?
+-5%
In resistance color code, what does it mean when gold is used as a multiplier band?
Divide the total by 10.
In resistance color code, what does it mean when gold is used as a multiplier band?
Divide the total by 100
What are other names for variable resistor?
Potentiometer or pot.
Rheostat
