Brevet Physics Semester 1
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CHAPTER 1: DC VOLTAGE
Introduction -
Generalities4 Topics|1 Quiz
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Electric Current and Voltage4 Topics|1 Quiz
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Laws of connections4 Topics|1 Quiz
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The Oscilloscope4 Topics|1 Quiz
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Problem solving Chapter 1 DC voltage4 Topics
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Unsolved problems Chapter 1 DC voltage (downloadable pdf)
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CHAPTER 2: RESISTORSIntroduction
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Resistance4 Topics|1 Quiz
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Ohm’s Law for a resistor4 Topics
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Using the rheostat4 Topics|1 Quiz
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Grouping resistors4 Topics|1 Quiz
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Problem solving Chapter 2 Resistors6 Topics
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Supplementary problems (downloadable pdf)1 Topic
Physics-Grade 9-Chapter 4- DC Voltage- MCQ 4- The oscillioscope
Instructor Barakat Nasser January 26, 2021
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Question 1 of 8
1. Question
Set A: For questions 1 to 4, use the following paragraph
An oscilloscope is used to study the voltage across the terminals of a generator.
The adjacent document shows the corresponding connection and the screen of the oscilloscope.
Terminal M of the oscilloscope is:
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Question 2 of 8
2. Question
The oscilloscope is reading voltage:
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Question 3 of 8
3. Question
The vertical sensitivity is 20V/div. The voltage displayed on the screen of the oscilloscope is:
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Question 4 of 8
4. Question
If the terminals of the oscilloscope are interchanged, then the luminous line…:
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Question 5 of 8
5. Question
Set B: For questions 5 to 8, refer to the following paragraph:
The circuit shown in the adjacent figure is composed of a DC generator, a switch, a motor, and three identical lamps. The dry cell maintains a constant voltage UPN = 20V, the motor uses 12V to function normally while lamp (L1) takes 3V. An oscilloscope is connected across lamp (L3) to study the voltage across its terminals. The vertical scale is chosen to be 2V/div.
The voltage across lamp (L2) is:
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Question 6 of 8
6. Question
The voltage across lamp (L3) is 5V. We can prove this using:
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Question 7 of 8
7. Question
The oscilloscope measures the voltage:
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Question 8 of 8
8. Question
The luminous line appears at:
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