Question 1: If the vertical amplifier of the oscilloscope consists of a bandwidth of 15 MHZ, what is the fastest rise time that an input might have to be displayed devoid of distortion?
Question 2: Find out the velocity of the electron beam in an oscilloscope if the voltage applied to its accelerating anode is 2000V.
Question 3: The deflection sensitivity of cathode ray tube is 0.06mm/V and unknown voltage applied to the deflection plates shifts the spot by 4mm in the direction of left in the horizontal direction. Find out the unknown applied voltage.
Question 4: The X deflecting plates in a cathode ray tube are 15 mm long and 6mm apart. The center of the plates is 20 cm from the screen. The accelerating voltage is 2500 V. Find out the deflection sensitivity and deflection factor of the cathode ray tube.
Question 5: The lissajous pattern of oscilloscope is stationary and has 5 vertical maximum values and 4 horizontal maximum values. The frequency of horizontal input is 1200 Hz. What is the frequency of vertical input?
Question 6: The X deflecting plates in a cathode ray tube are 5mm apart and 25mm long. The center of plates is 20 cm from the screen. The accelerating voltage is 3000V. What is the rms value of the sinusoidal voltage applied to X deflecting plates if the length of the trace obtained on the screen id 10 cm. Determine as well the electrostatic deflection sensitivity of the above CRT?
Question 7: The deflection sensitivity of a CRT is 0.05mm/V and an unknown voltage applied to the horizontal Deflection plates shifts the spot by 5mm in the direction of right in the horizontal direction. Find out the unknown applied voltage.
Question 8: The X deflecting plates in a CRT are 20mm long and 5mm apart. The center of the plate is 0.25m from screen. The accelerating voltage is 3000V. What is the deflection sensitivity and deflection factor of the CRT?