- Do Liquids Conduct Electricity?
- Good/Poor Conducting Liquids
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
(1) liquid A is a better conductor than liquid B.
(2) liquid B is a better conductor than liquid A.
(3) both liquids are equally conducting.
(4) conducting properties of liquid cannot be compared in this manner.
When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?
In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area. Explain why they do this.
A child staying in a coastal region tests the drinking water and also the seawater with his tester. He finds that the compass needle deflects more in the case of seawater. Can you explain the reason?
Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain.