Podcast
Questions and Answers
What is the relationship between electricity and magnetism?
What is the relationship between electricity and magnetism?
- They are completely unrelated
- Magnetism causes electricity
- Electricity causes magnetism
- They are both part of the phenomenon of electromagnetism (correct)
What is the result of the presence of a positive or negative electric charge?
What is the result of the presence of a positive or negative electric charge?
- It causes electric discharges
- It produces a magnetic field
- It generates static electricity
- It produces an electric field (correct)
What is the movement of electric charges called?
What is the movement of electric charges called?
- Electric potential
- Electric current (correct)
- Electric discharges
- Electric heating
What is typically measured in volts?
What is typically measured in volts?
What is the force acting on a charge given by in most applications?
What is the force acting on a charge given by in most applications?
What is the most common voltage and frequency combination used in North America?
What is the most common voltage and frequency combination used in North America?
What happens if travellers use portable appliances with incompatible voltage and frequency?
What happens if travellers use portable appliances with incompatible voltage and frequency?
What is the general-purpose alternating-current electric power supply commonly referred to as?
What is the general-purpose alternating-current electric power supply commonly referred to as?
What is the form of electrical power that is delivered to homes and businesses through the electrical grid in many parts of the world?
What is the form of electrical power that is delivered to homes and businesses through the electrical grid in many parts of the world?
What is the purpose of non-interchangeable plugs and sockets in different regions?
What is the purpose of non-interchangeable plugs and sockets in different regions?
