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
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Category | Format | Size |
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Lu Jiao Edition Ninth Grade Physics Volume 1 | pptx | 6 MB |
Description
"Current and Circuit" PPT courseware 8
Navigation of this section
1. How to express the strength of current
2. How to read on the ammeter
3.How to connect the ammeter
1. How to express the strength of current
Current: A physical quantity that represents the strength of an electric current.
Electric current is usually represented by the letter I.
Units of current: Amperes, milliamps, microamps
Rules for using ammeter
1. Before use, check whether the pointer points to zero. If not, use a screwdriver to turn the zero-adjustment screw on the dial to adjust the pointer to the zero position.
2. Make the current flow into the ammeter from the positive terminal of the ammeter, and then flow out from the negative terminal.
3. The measured current should enter through the "+" terminal of the ammeter and flow out from the "-" terminal.
4. To measure the current in a certain part of the circuit, the ammeter must be connected in series in this part of the circuit.
Summary of using ammeter:
1. Zero adjustment.
2. "Ten" enters and "One" exits
3. The ammeter should be connected in series in the circuit.
4. Select the range of the ammeter by trial touch method.
5. It is absolutely not allowed to connect the ammeter directly to the two poles of the power supply.
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"Exploring the Laws of Current in Series and Parallel Circuits" Current and Circuit PPT Courseware 2:
"Exploring the Laws of Current in Series and Parallel Circuits" Current and Circuit PPT Courseware 2 Experience: Current Characteristics of Series and Parallel Circuits Experiment Preparation: Power supply, switch, wires, and two small light bulbs with different specifications. Activity 1: Connect two small light bulbs to form a series circuit (as shown in the picture)..
"Exploring the Laws of Current in Series and Parallel Circuits" Current and Circuit PPT Courseware:
"Exploring the Laws of Current in Series and Parallel Circuits" Current and Circuit PPT Courseware Connecting series circuits: Note: The switch must ____ when wiring to avoid short circuit. Question: The light bulb glows, which proves that _____ has passed. What is the direction of the current? Ask questions..
"Measurement of Current" Current and Circuit PPT Courseware 9:
"Measurement of Current" Current and Circuit PPT Courseware 9 Current 1. Current intensity: Indicates the size of the current. Current intensity is abbreviated as current symbol I 2. The basic unit of current: Ampere, abbreviated as A, symbol A. Common units: milliampere (mA) and Microampere (A) conversion relationship: 1A=..
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Update Time: 2024-09-11
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