Question

A tester is used to check the conduction of electricity through two liquids, labeled $A$ and $B$. It is found that the bulb of the tester glows brightly for liquid $A$ while it glows very dimly for liquid $B$. You would conclude that:

• A. liquid $A$ is a better conductor than liquid $B$
  
• B. liquid $B$ is a better conductor than liquid $A$
  
• C. both liquids are equally conducting
  
• D. conducting properties of liquid cannot be compared in this manner
  

Answer 1

Answer: (A)

liquid $A$ is a better conductor than liquid $B$

The amount of current flowing through a conducting solution depends on the conductivity of the solution. More the conductivity, more current passes through the solution and vice-versa. Hence, the conductivity of liquid $A$ is more than the conductivity of liquid $B$.