Structure of Cathode Ray Oscilloscope (CRO)

X-plates is

• positioned vertically to deflect the electron beam in horizontal direction

• positioned horizontally to deflect the electron beam in vertical direction

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

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

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

Diagram shows part of C.R.O. What is Q?

• Control grid

• Focusing anode

• Accelerating anode

• Cathode

Tags

NGSS.HS-PS3-5

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

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

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

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.

Tags

NGSS.HS-PS4-5

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

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