Electromagnetism Quiz

The video tutorial introduces the concept of electric current and its ability to produce a magnetic field. It explains the structure and function of coils and electromagnets, and how electric motors convert electrical energy into mechanical energy. The tutorial also covers the measurement of electric currents, the creation of electric current through magnetic fields, and the role of generators in converting mechanical energy to electrical energy. Finally, it discusses transformers and their ability to adjust the voltage of alternating current.

What does an electric current flowing through a wire produce?

• A magnetic field

• A sound wave

• A light beam

• A chemical reaction

What is an electromagnet made of?

• A coil of wire around a metal core

• A magnet and a switch

• A single wire

• A battery and a bulb

What is the primary function of an electric motor?

• To convert electrical energy into mechanical energy

• To store electrical energy

• To increase voltage

• To measure electric current

How can electric current be generated?

• By a chemical reaction

• By a magnetic field

• By a solar panel

• By a wind turbine

What is the role of a transformer in an electrical circuit?

• To measure electric current

• To convert mechanical energy to electrical energy

• To store electrical energy

• To step up or step down the voltage of an alternating current