Which of the following can be used as a tester for the electrical conductivity of a liquid?
Do liquids conduct electricity? How can we check for the conductivity of liquids using a tester?
A tester is used to check the conduction of electricity through two liquids, labelled A and B. It is found that the bulb of the tester glows brightly for liquid A while it glows very dimly for liquid B. From the above observations one can conclude that: