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. You would conclude that (i) liquid A is a better conductor than liquid B. (ii) liquid B is a better conductor than liquid A. (iii) both liquids are equally conducting. (iv) conducting properties of liquid cannot be compared in this manner.

Answer: (i) liquid A is a better conductor than liquid B

The amount of current flowing through a solution is determined by its conductivity. The quantity of current passing through the solution increases as the conductivity increases, and the quantity of current passing through the solution decreases as the conductivity decreases. As a result, the conductivity of liquid A is greater than that of liquid B.

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