# Cant understand this line in the book(semiconductor nightmare 4)

• nhrock3
In summary, a semiconductor is a material that has properties between those of a metal and an insulator. The "nightmare" in the title of the book refers to the challenges and difficulties faced by scientists and engineers in understanding and utilizing semiconductors. The number 4 in the title signifies that this is the fourth book in the "Semiconductor Nightmare" series, which focuses on different aspects of semiconductors. While the book is primarily intended for a scientific audience, it may still be of interest to non-scientists with a basic understanding of science and technology. Previous knowledge of the series is not necessary, as the author provides explanations and context for the concepts discussed.
nhrock3

in the marked red line
how they comeup with the fact the the velocity increases by this amount
?
i didnt see this expression before in this book

nhrock3 said:
how they comeup with the fact the the velocity increases by this amount

Hi nhrock3!

F = ma = m(dv/dt) …

In this case, F = qE = -eE, so m(dv/dt) = qE, so ∆v = -eEt/m.

thanks :)

## 1. What is a semiconductor?

A semiconductor is a material that has electrical conductivity between that of a metal and an insulator. This means it can conduct electricity under certain conditions, but not as easily as a metal. Examples of semiconductors include silicon, germanium, and gallium arsenide.

## 2. What is the "nightmare" in the title of the book?

The "nightmare" in the title refers to the challenges and difficulties that scientists and engineers face in understanding, developing, and utilizing semiconductors. These materials have complex properties and behaviors that can be difficult to predict and control, making them a source of frustration for researchers and manufacturers.

## 3. What is the significance of the number 4 in the title?

The number 4 in the title refers to the fact that this is the fourth book in the "Semiconductor Nightmare" series. Each book in the series focuses on different aspects of semiconductors, such as their history, properties, and applications.

## 4. Is this book suitable for non-scientists?

This book is primarily intended for a scientific audience, as it delves into technical details and concepts related to semiconductors. However, it may still be of interest to non-scientists who are curious about the subject and have a basic understanding of science and technology.

## 5. Can I understand this book without reading the previous books in the series?

While reading the previous books in the series may provide helpful background information, this book can be understood on its own. The author provides explanations and context for the concepts and topics discussed, making it accessible to readers who may not be familiar with the previous books.

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