Refresher on paralell resistance

[jbelectric777]

can someone gimme a refresher on resistors in paralell, i remember 1/R1 + 1/R2 etc, is the equal 1/sum?

 

[augie47]

http://yb0ah.tripod.com/tech/index.html

http://www.smps.us/electrical-engineering-formulas.pdf

 

[Dexter C]

Try Mike's books

 

[mivey]

1/R_equivalent = 1/R1 + 1/R2