I was wondering if anyone can give me advice for making a 5 Ohm resistor using a wire (when the only thing I have is an insufficient sample of that wire)??
I was wondering if anyone can give me advice for making a 5 ohm resistor using a wire (when the only thing I have is an insufficient sample of that wire)??
I was wondering if anyone can give me advice for making a 5 ohm resistor using a wire (when the only thing I have is an insufficient sample of that wire)??
The lead (graphite) in a pencil might be used to construct a resistor - with due consideration for power levels and safety. Won't be pretty but it might get the job done for you.
what makes you want make diy resistor? aren't they common and cheap enough? maybe you cannot find exact value? if so, did you know that you can combine two or more resistors to make equivalent of one you need?
thanks for the answers!!
forget about the insufficient part, assuming i have enough wire, what are some tips you would give me when making a resistor using wire. just advice to make it pratical and effective.
thanks for the answers!!
forget about the insufficient part, assuming i have enough wire, what are some tips you would give me when making a resistor using wire. just advice to make it pratical and effective.
To make one practical & effective, you need to consider the application!
If you wind wire on a coil form (ceramic or otherwise) you will also be making an inductor. Whether or not that will be bad for you ...... depends on the application.
If you don't want to reveal how it will be used, there is no guarantee that your wire version will work well for you.
what Optikon said is probably what I need - so thanks! The resistor isn't for anything - it's for a physics experiment and all I want are tips so I don't seem totally clueless.
Regarding wire - consider wires made of different materials. Nichrome wire is a particularly high resistance wire that can run at relatively high temperatures. Also consider that resistance of materials will change with temperature - not of great significance sometimes but in some situations the change can be profound - a light bulb filament is one extreme example.