# Difference? Regular resistor and a current limiting resistor?

#### Steveggz

Oct 7, 2017
15
What are the physical differences between a regular resistor and a current limiting resistor? Or is it the same resistor the difference being one applied in a parallel or series?

#### kellys_eye

Jun 25, 2010
5,477
All resistors limit current. That's their purpose.

The product of their resistance and the current flowing through them create the volt drop across them. Basic Ohm's Law.

#### BobK

Jan 5, 2010
7,682
Just as a “rental car” is no different than a “car”, a “current limiting resistor” is simply referring to a particular usage of the resistor.

Bob

#### Steveggz

Oct 7, 2017
15
Thanks both.

I was a little confused because some articles referred to the resistor as a current limiting resistor as if it's a specific type.

Thanks.

#### Terry01

Jul 5, 2017
206
I wondered about that too but forgot to ask at the time so thanks from me too!

#### BobK

Jan 5, 2010
7,682
Just like a travel agent might ask if you want a rental car.

Bob

#### FuZZ1L0G1C

Mar 25, 2014
366
I=V/R (ohm's law)
Some also refer to a series resistor in a current-limiting configuration as a 'dropper'.
----------------;;;;====================;;;;-----------
V.in ;;;; V.Drop across R ;;;; Lower V.out=Less I
Higher R=<I

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