ODWS icon The Open Door Web Site
Site Map
> Electronics
History of Science and Technology
Math Studies
Learning French
Study Guide

Variable Potential Divider Circuit

Custom Search

We can make a variable potential divider using a rheostat (also called a variable resistor). In this case we have a circuit similar to the previous one but now the two resistors R1 and R2 are two parts of the same component. This is useful for volume controls etc.

The diagram on the right shows the approximate appearance of the variable resistor on its support.

Connect a voltmeter as shown and move s (that is, turn the rheostat).

Note that the voltmeter reading varies from zero to the full voltage of the battery.

Privacy Policy

Copyright Information

Sponsored Links

Sponsored Pages

Donating to the ODWS

Advertising on the ODWS


Electronics Homepage

The Open Door Team
Any questions or problems regarding this site should be addressed to the webmaster

David Hoult 2017