How can we test conductivity of a substance by using a tester?
Dear Student ,
If a substance conducts electricity then if a tester is touched on the conductor then a light in the conductor glows that means that the substance is conducting electricity .
Hope this helps you .
Regards
If a substance conducts electricity then if a tester is touched on the conductor then a light in the conductor glows that means that the substance is conducting electricity .
Hope this helps you .
Regards