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Do all the questions the pre lab for physics class. See the attachment down.
make a good work please and don't copy paste.
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Re: Class canc
386
Physics Laboratory Mama Loyd
5. A typical student oscilloscope on its least sensitive calibrated scale can display a voltage up to a
maximum of approximately (a) 1V (b) 5V (c) 20 V (d) 200 V.
6. A typical student oscilloscope on its most sensitive calibrated scale can display a voltage down to a
minimum of approximately (a) 1 mV (b) 5mV (c) 20 V (d) 200 mV.
7. A sawtooth wave with a period of 100 ms is applied to an oscilloscope with a screen 10 cm wide.
What time is represented by 1 cm on the screen?
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38
LABORATORY 38 Oscilloscope Measurements
PRE LABORATORY ASSIGNMENT
1. Describe the components that make up the electron gun in a cathode-ray tube.
2. Describe the voltage waveform that produces a linear time scale when applied to the horizontal plates
of a cathode-ray tube.
3. When the electron beam strikes the fluorescent screen, the phosphor glow that results has persistence,
Approximately how long does the glow persist?
4. A function generator outputs a sine wave off = 200 Hz. It is input to an oscilloscope set at 1 ms/DIV
How many complete cycles of the sine wave are displayed on the oscilloscope? (Hint-The period of
the sine wave T is related to the frequency of the wave by T-1/, and there are 10 divisions on the
time display of the oscilloscope)
30
san
>11
#
3
%
5
&
7
* O
4
6
9
O
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