Characteristics of a Practical Transformer

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What defines a Step-up transformer?

The induced EMF is less than the input signal

The induced EMF is equal to the input signal

The primary winding has more turns than the secondary winding

The secondary winding has more turns than the primary winding (correct)

Which type of transformer has a secondary winding with fewer turns than the primary winding?

Core type transformer

Step-down transformer (correct)

Shell type transformer

Step-up transformer

What is the key characteristic that distinguishes a practical transformer from an ideal transformer?

Number of turns in the windings

Size of the transformer

Material used in the core

Efficiency (correct)

In a Step-down transformer, what can be said about the induced EMF compared to the input signal?

It is lesser Signup and view all the answers

What role does a transformer play in an electrical circuit?

Changing voltage or current magnitude Signup and view all the answers

Which type of transformer has its windings wound around a common magnetic core?

Core type transformer Signup and view all the answers

What distinguishes core type and shell type transformers?

The manner in which primary and secondary coils are placed around the core Signup and view all the answers

Which part of the transformer provides a continuous magnetic path?

Core Signup and view all the answers

What is one of the functions of an electrical transformer in a circuit?

Isolating two electric circuits Signup and view all the answers

In which application would you likely find the use of an electrical transformer?

Windmills Signup and view all the answers

What does a transformer do to the voltage level at power generation sites?

Steps it up Signup and view all the answers

Why is preventing the passage of DC from one circuit to another an important function of a transformer?

DC can damage equipment in the receiving circuit Signup and view all the answers

What is the main difference between core type and shell type transformers?

Core type transformers are suitable for high voltage applications while shell type transformers are used for low voltage applications. Signup and view all the answers

In an ideal transformer, what is the efficiency compared to a practical transformer?

100% efficiency in an ideal transformer, less than 100% in a practical transformer. Signup and view all the answers

Why is the voltage regulation of a practical transformer always more than 0%?

Since there is flux leakage in practical transformers. Signup and view all the answers

What makes an ideal transformer hypothetical and impossible to realize practically?

The fact that it has zero core loss and copper loss. Signup and view all the answers

Which type of winding is common in core type transformers?

Multi-layer disc type winding. Signup and view all the answers

What is the primary application of shell type transformers?

Transformers used in electronic circuits. Signup and view all the answers

Characteristics of a Practical Transformer

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