Podcast
Questions and Answers
In electroplating by electrolysis, what happens at the iron cathode?
In electroplating by electrolysis, what happens at the iron cathode?
- Alignment in the north-south direction
- Formation of bubbles of gas
- Heating up
- Coating in copper (correct)
What does an electric current convert into when passing through any resistor?
What does an electric current convert into when passing through any resistor?
- Chemical energy
- Potential energy
- Magnetic energy
- Heat energy (correct)
What is the main purpose of using an element in a kettle or an electric heater?
What is the main purpose of using an element in a kettle or an electric heater?
- Cooling down the resistor
- Converting electrical energy into heat (correct)
- Creating a magnetic field
- "Improving appearance"
What is another name for the thin layer formed on a metal in the electroplating process?
What is another name for the thin layer formed on a metal in the electroplating process?
Why is it beneficial to have high voltage power lines?
Why is it beneficial to have high voltage power lines?
What is the main purpose of an electromagnet based on the magnetic effect of an electric current?
What is the main purpose of an electromagnet based on the magnetic effect of an electric current?
What happens to a resistor when an electric current passes through it?
What happens to a resistor when an electric current passes through it?
What is the role of a resistor in converting electrical energy to heat?
What is the role of a resistor in converting electrical energy to heat?
What do electromagnets utilize to function in various applications?
What do electromagnets utilize to function in various applications?
Which effect of electric current can be either useful or problematic depending on the application?
Which effect of electric current can be either useful or problematic depending on the application?
