lessonresistorcapacitorinductor电子技术专业英语教程.ppt

Lesson 3 Resistor Capacitor Inductor
《电子技术专业英语教程》冯新宇主编
电子工业出版社
Unit 2 Semiconductor device
2018/10/7
《电子技术专业英语教程》
2
Lesson 3 Resistor Capacitor Inductor
Backgrounds
Text tour
Language in use
Vocabulary Structure
Reading/writing techniques
2018/10/7
《电子技术专业英语教程》
3
Terminology
Resistor
Capacitor
Inductor
Four-band resistors
Inductance formulae
Backgrounds
2018/10/7
《电子技术专业英语教程》
4
Terminology
2018/10/7
《电子技术专业英语教程》
5
电阻可以被认为对电流具有一种阻碍作用,电阻越高所流过的电流越低。
Resistor
Resistance may be thought of as an opposition to current flow; the higher the resistance the lower the current that will flow .
2018/10/7
《电子技术专业英语教程》
6
The resistance of an electrical conductor depends on 4 factors, these being:
(a) The length of the conductor. Resistance, R, is directly proportional to length, l, of a conductor, . R∝l.
(b) The cross-sectional area of the conductor. Resistance, R, is inversely proportional to cross-sectional area, a, of a conductor, . R∝1/a.
(c) The type of material.
(d) The temperature of the material.
Resistor
2018/10/7
《电子技术专业英语教程》
7
Resistor
导体的电阻依赖以下四个因素:
(a)导体长度。电阻R正比于导体长度l,即R∝l
(b)导体横截面积。电阻R反比于导体的横截面积a,即R∝1/a
(c)材料类型
(d)材料温度。
2018/10/7
《电子技术专业英语教程》
8
The main types of the capacitor include: variable air, mica, paper, ceramic, plastic, titanium oxide and electrolytic.
电容的主要类型包括:可变间隙电容,云母电容,纸电容,陶瓷电容,塑料电容,二氧化钛电容以及电解质电容。
Capacitor
2018/10/7
《电子技术专业英语教程》
9
An iron-cored inductor is often called a choke since, when used in . circuits, it has a hoking effect, limiting the current flowing through it.
一个有铁芯的电感器我们通常把它称之为扼流圈,这主要是因为在交流电路中它具有阻塞效应,可以限制流过它的电流。
Inductor
2018/10/7
《电子技术专业英语教程》
10
Four-band resistors
Four-band identification is the monly used color-coding scheme on resistors. It consists of four colored bands that are painted around the body of the resistor. The first two bands encode the first two significant digits of the resistance value, the third is a power-of-ten multiplier or number-of-zeroes, and the four