Term
|
Definition
| Term for the property of "impeding" current flow. A material that is a conductor will have low resistance while a insulator will have very high resistance. The better the conductor, the lower the resistance. The better the insulator, the higher the resistance. |
|
|
Term
|
Definition
An electrical component used because it has a specific resistance. Resistors use color coded stripes to indicate their value and tolerance.
|
|
|
Term
| Resistor Power Dissipation |
|
Definition
| Resistors are rated in power dissipation as well as resistance and tolerance. 1/4 and 1/2 watt resistors are most common, but higher and lower wattages are available. Power dissipation is usually indicated only by the size of the resistor. |
|
|
Term
Resistors in Series
[image] |
|
Definition
The total resistance of resistors in series is found with simple addition of their values.
(R1 + R2 + R3 + ...) |
|
|
Term
Resistors in Parallel
[image] |
|
Definition
The total resistance of resistors in parallel is found by using the following formula.
(1/R1 + 1/R2 + 1/R3 + ...= 1/RTOTAL) |
|
|
Term
|
Definition
Voltage: The voltage drop of components in series will add up to the total circuit voltage. Each component will drop a voltage proportional to its resistance (or impedance). Current: The current through any component in a series circuit is the same as all other components and the circuit current. |
|
|
Term
| Parallel Circuits Voltage: |
|
Definition
Voltage: The voltage drop across components in a parallel circuit is the same as all other components and the total circuit voltage. Current: The current through components in parallel will add up to the total circuit current. Current through each component will be proportional to its resistance (or impedance). |
|
|
Term
| Parallel Circuits Current: |
|
Definition
The current through components in parallel will add up to the total circuit current. Current through each component will be proportional to its resistance (or impedance). |
|
|
Term
|
Definition
| A special type of resistor that allows the resistance value to be adjusted. There are 3 connections to a potentiometer |
|
|
Term
|
Definition
| this connection "moves" closer (decreases resistance) to CW when the potentiometer (pot) is turned clockwise and farther from CCW. The opposite happens when it is turned counterclockwise. |
|
|
Term
Potentiometers CW(clockwise) |
|
Definition
| This connection has less resistance to the Wiper when the pot is turned clockwise, more when the pot is turned counter-clockwise. It always has the stated potentiometer resistance to CCW. |
|
|
Term
Potentiometers CCW(counter-clockwise) |
|
Definition
| This connection has less resistance to the Wiper when the pot is turned counter-clockwise, more when the pot is turned clockwise. It always has the stated potentiometer resistance to CW. |
|
|
Term
|
Definition
|
|
