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Question 1 of 10
1. Question
1 point(s)What is thermionic emission?
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Question 2 of 10
2. Question
1 point(s)Which of the following is not the factor that affects the rate of thermionic emission?
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Question 3 of 10
3. Question
1 point(s)Which of the following is true about cathode ray?
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Question 4 of 10
4. Question
1 point(s)The figure below shows an image on the screen of a Maltese Cross Tube. If a bar magnet is brought close to the Maltese Cross Tube as shown in the figure. What will be the possible new position of the image?
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Question 5 of 10
5. Question
1 point(s)The figure below shows a moving charged particle is deflected in an electric field. The angle of deflection is affected by
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Question 6 of 10
6. Question
1 point(s)Which of the following diagram shows the correct movement of a cathode ray when it approaches a charged sphere?
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Question 7 of 10
7. Question
1 point(s)The diagram shows a trace on a cathode ray oscilloscope (CRO). Which of the following statement is true about the signal displayed and the setting of the CRO?
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Question 8 of 10
8. Question
1 point(s)The diagram shows a trace on an oscilloscope. The time-base of cathode-ray oscilloscope is set to 5 ms/div. What is the frequency of the signal?
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Question 9 of 10
9. Question
1 point(s)The figure above shows a waveform of an alternating current on the screen of a cathode-ray oscilloscope. The Y-gain control is set to 5V/div. Find the peak voltage of the alternating current.
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Question 10 of 10
10. Question
1 point(s)Which part of the cathode ray oscilloscope controls the brightness of the light spot on the screen?
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