"The Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 3

Description

"The Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 3

observe and think

Two light bulbs of different specifications are connected in series. When the switch is closed, will both lights shine? Is the brightness of the light the same?

Ask a question

1. Why do the two lights emit light differently?

2. What does the series circuit voltage have to do with it?

1. Explore the rules of voltage in series circuits

Experimental steps

1. Adjust the voltmeter pointer to zero and check the equipment;

2. Connect the circuit according to the circuit diagram. Turn off the switch and check the circuit;

3. Use a voltmeter to measure the voltage across the lamp L1 and record it as U1;

4. Use a voltmeter to measure the voltage across the lamp L2 and record it as U2. Measure the total voltage across the lamps L1 and L2 as U and record it in the table;

5. Replace the bulb and repeat steps 3 and 4;

6. Summarize the relationship between total voltage and partial voltage.

2. Explore the rules of voltage in parallel circuits

question

1. What is the relationship between the voltage across each branch and the voltage across the power supply?

2. Is it the same as the current relationship in a parallel circuit?

3. Is it the same as the voltage relationship in a series circuit?

Think about it, do it

Connect several batteries in series to form a battery pack, use a voltmeter to measure the voltage across each battery, and then measure the voltage across the battery pack. What's the relationship between them?

Voltage rules for batteries connected in series:

The experimental results show that the voltage across the battery pack is equal to the sum of the voltages of each battery.

practice

experimental design:

1. A power supply, a light bulb, and a switch each form a series circuit. Use an ammeter to measure the current and a voltmeter to measure the voltage of the lamp. Draw a circuit diagram.

2. A battery, switch, and 2 lamps form a series circuit. Use an ammeter to measure the current and a voltmeter to measure the voltage of a lamp. Draw the circuit diagram.

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For more information about the PPT courseware "Voltage Rules of Series and Parallel Circuits with Voltage and Resistors", please click on the Voltage Rules of Voltage in Series and Parallel Circuits with Voltage and Resistors ppt tag.

"Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 6:

"Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 6 Observe and think about two light bulbs of different specifications connected in series. When the switch is closed, will both lights shine? Is the brightness of the light the same? Ask a question 1. Why do the two lights emit light differently? 2. series connection..

"Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 5:

"The Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 5 Review questions: 1. What are the laws of current in series circuits? The current in a series circuit is equal everywhere. Formula: I=I1=I2 2. What are the rules of the current in a parallel circuit? Main circuit current in parallel circuit, etc..

"Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 4:

"Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 4 Have you mastered it? 1. The voltmeter has ____ ranges: from 0V to 3V and from ____V to ____V. When the measuring range is 3Ⅴ, the graduation value is ____Ⅴ; when the measuring range is 15Ⅴ, the graduation value is ____Ⅴ..

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Update Time: 2024-07-29

This template belongs to Physics courseware People's Education Edition Ninth Grade Physics Complete Book industry PPT template

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