# Voltage/current problem

what sort of voltage would i need to get a measurable current through a standard non uniform clay brick - where the current is in mA???

thanks

dextercioby
Homework Helper
In the simplest terms,it would depend on the range in which the resistence of the clay brick is.If it's $M\Omega$ (it's not a metal),then u figure out the voltage...

Daniel.

EDIT:DO NOT DOUBLE POST!!

well i am supposed to be working out the resistance by putting a voltage through two oppisite faces of a brick i just need a measurable current so needed an appriopiate electro-motive force (voltage)
does anyone know any where i can find this information or the resistance of a certain type brick?

dextercioby
Homework Helper
You can google for key words.The name of the substance (whatever that clay is about) and "electrical resistance"...

There have to be some tables out there...

Daniel.

well i tryed google before hand with every variation i could think and have just tryed once again with no success