10K Trimmer Potentiometer (Through Hole)

\$0.85
Qty:

20K Through Hole Trimmer Potentiometer

\$0.85
Qty:

50K Potentiometer Panel Mount (Non Trimmer)

\$1.49
Qty:

Small Knob for Potentiometer - Black with Red Cap

\$0.94
Qty:

50K Potentiometer Panel Mount (Non Trimmer) With Knob

\$2.45
Qty:

5K Potentiometer - Rotary

\$0.95
Qty:

50K Trimmer Through Hole

\$0.85
Qty:

330 Ohm Through Hole Resistor

\$0.15
Qty:

10K Resistor 1/4 watt Through Hole

\$0.15
Qty:

4.7K Ohm Resistor 1/4 watt

\$0.15
Qty:

### On Paper: Understanding Voltage Dividing using Resistors or a Potentiometer

A voltage divider is a way to decrease a voltage to a proportion of the circuit voltage using two resistors or a potentiometer. The proportion of two resistors will create that proportion output of voltage between the resistors (or the wiper in the case of a potentiometer).
The formula for a voltage divider is:

Vout = ( R1/(R1 + R2) ) * Vin

Example: Resistors are the same on both sides.

Vout = ( 100 ohm / (100 ohm + 100 ohm)) * 5v
Vout = (100/200)*5v
Vout = 1/2 * 5V
Vout = 2.5V as expected.