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Physics
11th -
12thgrade
Structure of Cathode Ray Oscilloscope (CRO)
12 questions
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- 1. Multiple Choice
X-plates is
positioned vertically to deflect the electron beam in horizontal direction
positioned horizontally to deflect the electron beam in vertical direction
- 2. Multiple Choice
Diagram shows a waveform displayed on the screen of a cathode ray oscilloscope (C.R.O.). Which of the following control switch needs to be switched on to display this waveform?
intensity
time-base
Y-gain
Y-shift
- 3. Multiple Choice
Diagram shows a trace on the screen of a C.R.O. when a signal is connected across the Y-input. What type of signal is applied across the Y-input and what is the condition of the time-base?
alternating current, switched off
direct current, switched off
alternating current, switched on
direct current, switched on
- 4. Multiple Choice
Diagram shows part of C.R.O. What is Q?
Control grid
Focusing anode
Accelerating anode
Cathode
- 5. Multiple Choice
What you need to control in order to adjust the brightness of the signal in C.R.O.?
Focusing anode
Control grid
Accelerating anode
Cathode
- 6. Multiple Choice
What you need to control in order to adjust the resolution (sharpness) of the signal in C.R.O.?
Control grid
Focusing anode
Accelerating anode
Cathode
- 7. Multiple Choice
What is the function of time-base knob on C.R.O.?
To control brightness of the bright spot
To control the sharpness of the bright spot
To control the magnitude of vertical deflection of the bright spot
To control the magnitude of horizontal deflection of the bright spot
- 8. Multiple Choice
Tick the statement about uses of CRO. Your answer may have more than 1.
measure potential difference using the C.R.O.
measure short time intervals using the C.R.O.
display wave forms using the C.R.O.
- 9. Multiple Choice
Diagram shows the structure of a cathode ray oscilloscope. What is component C and D?
Rajah menunjukkan struktur osiloskop sinar katod. Apakah komponen C dan D?
C: Cathode / Katod
D: Control Grid / Grid kawalan
C: Control Grid / Grid kawalan
D: Focusing anode / Anod memfokus
C: Accelerating anode / Anod memecut
D: Focusing anode / Anod memfokus
C: Focusing anode / Anod memfokus
D: Accelerating anode / Anod memecut
- 10. Multiple Choice
Diagram shows two magnets with opposite poles are placed at the sides of the tube causing the shadow being deflected. The direction of the deflection is determined using
the right hand grip rule
the left hand grip rule
the Fleming's right hand rule
the Fleming's left hand rule
- 11. Multiple Choice
Diagram shows the structure of a cathode ray oscilloscope.
Which component, A, B, C, or D causes the electrons to accelerate?
A
B
C
D
- 12. Multiple Choice
Diagram 33 shows a trace on the screen of a cathode ray oscilloscope.
Which statement is correct to explain the trace produced?
Both Y-input and time base are switched off
Y-input is connected to battery and the time base is switched off
Y-input is connected to alternating current power supply and the time base is switched off
Y-input is connected to alternating current power supply and the time base is switched on
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