Paper Resistor

Step 5 Limitations,Experimentation and Applications -

Though this resistor is modest at perfromance it can't be used for all practical applications.This is because it is difficult to calibrate this resistor to lower resistance value in ohms.Also while making a PCB it would be difficult to attach it.But for experimental purposes it is good.You can learn a lot about resistors by this instructable.The pencil lead is actually a graphite rod (carbon).By rubbing it on paper you transfer the carbon particles on to the paper.The paper is a insulator.The comibantion of paper and carbon acts as a resistor.You can tryby using a very thin line of pencil on the paper to thick lines on the paper and see the difference in calibrating it and its effect on resistance.You can use it to make a "light dimmer" or controlling volume output in a sound circuit or to control motor speed etc.It can also be used in small circuit or circuits in which it is hard to find the required resistance.

I hope you liked my first instructable.If you have any suggestions or comments or questions you can tell me freely in the comment space or can email me at [e-mail]

Comments

[raju1192]

Actually my question is how to connect with Multimeter?
and it will not get heated?
plz answer me.

[amit13121991]

does anything happen 2 the paper due 2 the heat generated by the resistor.....

[jrt42]

How about a strip of foil on paper?

[LkArio]

The resistance would be very low, much less than a quarter of an ohm

[kishcool2005]

It is a good idea buddy...but when days go on ,the resistance value will decrease gradually due to removal of carbon particles from the paper...any how you have given an alternative for resistor...gr8 job..!