People's Education Edition Physics for Grade 8, Volume 2
People's Education Edition Ninth Grade Physics Complete Book
Shanghai Science Edition Ninth Grade Physics
People's Education Edition Physics for Grade 8, Volume 1
Beijing Normal University eighth grade physics volume one
Shanghai Science Edition 8th Grade Physics
Lu Jiao Edition Ninth Grade Physics Volume 1
Beijing Normal University Ninth Grade Physics Volume 1
Lu Jiao Edition Ninth Grade Physics Volume 2
Guangdong and Shanghai Edition Ninth Grade Physics Volume 1
Lu Ke Edition High School Physics Compulsory Course One
People's Education Press High School Physics Compulsory Course II
Guangdong and Shanghai version of eighth grade physics volume 2
Beijing Normal University Ninth Grade Physics Volume 2
Lu Jiao Edition Eighth Grade Physics Volume 2
Guangdong and Shanghai Edition Ninth Grade Physics Volume 2
!["Rheostats" Voltage and Resistance PPT Courseware 2](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/3f10562b-27b2-40fd-9876-5b36248464d2.webp)
Category | Format | Size |
---|---|---|
Lu Jiao Edition Ninth Grade Physics Volume 1 | pptx | 6 MB |
Description
"Rheostats" Voltage and Resistance PPT Courseware 2
1. Resistance of conductor
1. Resistance: represents the resistance of a conductor to current flow
2. The greater the resistance of the conductor, the greater the obstruction to current flow.
3. The symbol of resistor in the circuit diagram
4. Unit of resistance: Ohm, symbol
5. Factors that affect conductor resistance: material, length, cross-sectional area, temperature
Note: The size of conductor resistance has nothing to do with the size of current and voltage. Resistance is a property of the conductor itself. That is to say, for the same conductor, the resistance remains unchanged regardless of temperature.
1. Rheostat
A component that can change the resistance of an access circuit is called a rheostat.
2. Sliding rheostat
1. Working principle: Change the length of the resistance line in the access circuit to change the access resistance, thereby changing the current.
2. Illustration
(1) Physical picture:
(2) Structural diagram:
(3) Component symbols:
Summary:
1. Connection method: series connection; one up and one down
2. Before closing the switch, the slider should be placed at the maximum resistance point.
3. The terminals at both ends of the metal rod are equivalent to the same terminal.
Class exercises
1. A sliding rheostat is a device that changes resistance by changing the ____________ connected to the circuit.
2. The words "20Ω1A" on the varistor nameplate:
1) Indicates that the maximum resistance of this varistor is ( ) Ω;
2)The resistance variation range is______Ω;
3) The maximum current allowed to pass is ______A.
4) When the slider P moves to the midpoint, the resistance value connected in the circuit is ( ).
5. As shown in the figure, when the sliding rheostat is connected to the circuit and the slider P slides to the right, the resistance of the circuit becomes larger. At this time, the terminal connected to the circuit should be ( )
(A) C and D (B) B and D (C) A and C (D) B and A
Class summary
1. A component that can change the resistance of an access circuit is called a rheostat.
2. The sliding rheostat changes the access resistance by changing the length of the resistance line in the access circuit, thereby changing the current. It should be connected in series in the circuit, and the wiring should be "one up and one down".
3. Potentiometer is the application of rheostat in daily life.
Keywords: voltage and resistance teaching courseware, rheostat teaching courseware, Lujiao version ninth grade physics PPT courseware download, ninth grade physics slide courseware download, voltage and resistance PPT courseware download, rheostat PPT courseware download, .PPT format;
For more information about the PPT courseware "Rheistor Voltage and Resistance", please click on the Rheostat ppt voltage and resistance ppt tags.
"Rheostats" PPT download:
"Rheistor" PPT download Part 1: Knowledge review 1. What physical quantity is resistance? Answer: Resistance is a physical quantity that represents the resistance of a conductor to current; the greater the resistance, the greater the resistance to current. 2. The factors that affect the size of the resistance are...
"Rheostats" PPT courseware:
"Rheistor" PPT courseware part one content: Rheostat 1. Rheostat: Principle of a device used to change the resistance: the size of the resistance changes with the length of the conductor. The maximum resistance value of this sliding varistor is 20, and the maximum current allowed is 2A. ..
"Rheostats" PPT:
"Rheistor" PPT Part One Content: Review Resistance (symbol: R) 1. Concept: The obstruction effect of conductors on current flow. The more resistant a conductor is to the flow of electricity, the greater its resistance. 2. Unit: ohm (ohm) (symbol: ) kiloohm (K), megaohm..
File Info
Update Time: 2024-09-11
This template belongs to Physics courseware Lu Jiao Edition Ninth Grade Physics Volume 1 industry PPT template
"Rheostats" Voltage and Resistance PPT Courseware 2 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Rheostats" Voltage and Resistance PPT Courseware 2 is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Rheostats" Voltage and Resistance PPT Courseware 2, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Preview
!["Rheostats" Voltage and Resistance PPT Courseware 2](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/f5ed86ba-35ac-4d63-94fe-a0ab8e017728.webp)