Transformer Principles and Applications Quiz

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Questions and Answers

What is the function of a transformer?

A transformer transfers AC electrical power from one circuit to another at a constant frequency, while altering the voltage level.

What principle does a transformer work on?

A transformer works on the principle of Faraday’s Law of Electromagnetic Induction.

What is Magnetic Hysteresis?

Magnetic Hysteresis is the phenomenon of flux density B lagging behind the magnetizing force H in a magnetic material.

Which materials are considered ferromagnetic?

Ferromagnetic materials are mainly responsible for the generation of the hysteresis loop. Examples include cold rolled grain oriented steel. Signup and view all the answers

Name one example of a paramagnetic material.

Aluminum is an example of a paramagnetic material. Signup and view all the answers

What is a transformer?

A transformer is a static electrical machine which transfers AC electrical power from one circuit to the other circuit at the constant frequency, but the voltage level can be altered, meaning voltage can be increased or decreased. Signup and view all the answers

On what principle does a transformer work?

A transformer works on the principle of Faraday’s Law of Electromagnetic Induction, which states that the magnitude of voltage is directly proportional to the rate of change of flux. Signup and view all the answers

What is Magnetic Hysteresis?

Magnetic Hysteresis is the phenomenon of flux density B lagging behind the magnetizing force H in a magnetic material. Signup and view all the answers

What are the three types of magnetic materials mentioned in the text?

The three types of magnetic materials mentioned are paramagnetic, diamagnetic, and ferromagnetic materials. Signup and view all the answers

Which materials are categorized as paramagnetic, diamagnetic, and ferromagnetic?

Paramagnetic: Aluminum, gold, and copper; Diamagnetic: Carbon, copper; Ferromagnetic: Cold rolled grain-oriented steel. Signup and view all the answers

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