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Electric Machine Basics

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Questions and Answers

What is the general term for machines using electromagnetic forces in electrical engineering?

Electromechanical converters

Electromagnetic generators

Mechanical power converters

Electric machines (correct)

What do electric generators convert?

Electricity to mechanical power

Mechanical energy to electrical energy (correct)

Voltage level of an alternating current

Electrical energy to mechanical energy

Which type of electric machines produce about 95% of all electric power on Earth?

Electric motors

Linear machines

Synchronous and induction generators (correct)

Transformers

What is the role of transformers in the context of electric machines?

<p>Energy converters, changing the voltage level of an alternating current</p> Signup and view all the answers

What is the function of an electric generator analogous to?

<p>A water pump, which creates a flow of water but does not create the water inside.</p> Signup and view all the answers

Study Notes

Electric Machines

The general term for machines using electromagnetic forces in electrical engineering is electric machines.

Electric Generators

Electric generators convert mechanical energy into electrical energy.

Electric Power Generation

About 95% of all electric power on Earth is produced by synchronous machines.

Transformers

The role of transformers in the context of electric machines is to change the voltage of an alternating current (AC) electrical signal.

Electric Generators Analogy

The function of an electric generator is analogous to a water pump, where mechanical energy is converted into electrical energy, just as a water pump converts mechanical energy into hydraulic energy.

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Description

Test your knowledge about electric machines, including electric motors, generators, and electromechanical energy conversion. Explore the concepts of rotating and linear machines, and their applications in electrical engineering.