1000 questions & answers

How does the magnetic effect of currents allow us to devise another kind of tester?

Why is distilled water a poor conductor of electricity when compared to tap water or other natural sources?

What is a common feature of most liquids that can conduct electricity?

How do chemical effects occur when an electric current passes through a conducting solution?

Explain the experiment regarding the use of a potato in testing the chemical effects of electric current?

What is the process of electroplating and what practical uses have been derived from it?

Why in industry is the base made out of a cheaper metal and only the top layer is coated with a more expensive metal?

How does a coating of zinc protect an iron object from corroding and forming rust?

Why is disposal of the used conducting solution in electroplating factories a significant concern?

Explain in detail what happens when an electrical circuit tester is used on a liquid that conducts electricity. Discuss the mechanisms by which the tester indicates whether or not the liquid allows the electric current to pass through, including the role of the bulb in the tester and how its glow or lack thereof represents the current’s strength.

Describe the process of electroplating and discuss its range of applications in different industries. Highlight the advantages of electroplating, specifically discussing why certain metals are chosen for the process and how electroplating makes objects more durable, aesthetically pleasing, or cost-effective.

As witnessed in the potato experiment, chemical changes can occur due to electric current. Elaborate on how this process takes place, explaining the effect of electric current on the potato and why the wire connected to the positive terminal results in a greenish-blue spot.

Discuss the conducting properties of distilled water and the factors that can change its conductivity. Can adding other substances make it a good conductor? If so, what are these substances and how do they improve the water's conductivity?

The disposal of the used conducting solution in electroplating factories presents environmental challenges. Discuss these challenges and explain the guidelines that have been provided to ensure the protection of the environment during disposal.

Can you explain why an electric spark occurs?

Explain the phenomenon of charging by rubbing with an example.

What are the different types of charges, and how do they interact?

How is an electric charge transferred? And what is this process called?

How does a lightning conductor work in protecting us from lightning?

Why is it not possible to accurately predict an earthquake?