[PDF] Drayton Manor High School Oscilloscope Old Exam Questions



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Basic Operation of an Oscilloscope

An oscilloscope displays a voltage waveform versus time and has the So if the scope is set to 1 volt/major vertical division and 0 5 seconds/major horizontal



The Oscilloscope and the Function Generator

millivolt change in the input signal will move the trace vertically by one major division A collection of controls related to the horizontal part of the display These controls set the time axis and are calibrated in seconds per division, e g , 1 s/div means that one major division corresponds to 1 microsecond



Oscilloscope, Function Generator, and Voltage Division

Oscilloscope, Function Generator, and Voltage Division 1 Introduction In this lab the student will learn to use the oscilloscope and function generator The student will also verify the concept of voltage division through measurements 2 Background This lab presents the basic controls of the oscilloscope and the function generator



The Oscilloscope: Operation and Applications

The deflection of the oscilloscope beam is proportional to the input voltage (after ac or dc coupling) The amount of deflection (Volts/Division) depends upon the setting of the AMPL/DIV control for that channel (see figure 2) The input signal can be ac or dc coupled Ac coupling involves adding a series capacitor This



Oscilloscope Fundamentals - Case School of Engineering

Oscilloscope Fundamentals www tektronix com 5 Signal Integrity The Significance of Signal Integrity The key to any good oscilloscope system is its ability to accurately reconstruct a waveform – referred to as signal integrity An oscilloscope is analogous to a camera that captures signal images that we can then observe and interpret



Reading an Oscilloscope - California State Polytechnic

4 note the vertical scale factor listed on the oscilloscope 5 multiply the number of divisions (including subdivisions) by the vertical scale factor to give the peak-to-peak voltage in units of voltage o For the reading of period: 1 Move the curve left or right to align a positive-to-negative zero crossing on a vertical division line 2



8 Signal Generators and Oscilloscopes

HORIZONTAL TIME/DIVISION: This adjust the horizontal time scale on the oscilloscope and this must roughly match the period T= 1 f output from the signal generator You know the signal generator output frequency f so you can calculate the period T measured on the oscilloscope This period T should roughly match the TIME/DIVISION scale selected



Drayton Manor High School Oscilloscope Old Exam Questions

Oscilloscope Old Exam Questions Q1 An oscilloscope is connected to an alternating current (a c ) supply The diagram shows the trace produced on the oscilloscope screen Each horizontal division on the oscilloscope screen represents 0 002 s (a) Calculate the frequency of the alternating current supply

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Drayton Manor High School

Page 1Oscilloscope Old Exam Questions

Q1. An oscilloscope is connected to an alternating current (a.c.) supply. The diagram shows the trace produced on the oscilloscope screen. Each horizontal division on the oscilloscope screen represents 0.002 s. (a) Calculate the frequency of the alternating current supply. Show clearly how you work out your answer and give the unit. Frequency = ........................................................................... (3) (b) What is the frequency of the a.c. mains electricity supply in the UK? (1) (Total 4 marks)

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Page 2

Q2. The diagram shows two oscilloscope traces, A and B. Trace A shows how the potential difference between the live and neutral terminals of an electricity supply changes with time. (a) Describe how the potential of the live terminal varies with respect to the neutral gvterminal of the electricity supply. (2) (b) What does trace B show? (1) (c) Each horizontal division on the oscilloscope represents 0.005 s. (i) What is the period of this electricity supply? Period = .................................. seconds (1) (ii) Calculate the frequency of the supply. Frequency = .................................. hertz (1) (Total 4 marks)

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M1. (a) 125

allow 1 mark for obtaining time period = 0.008 (s) or frequency = 1 / time period (or their calculated time period) 2 hertz or Hz do not accept hz 1 (b) 50 (hertz) 1 [4]

M2. (a) alternates

accept switches accept (constantly) changes accept goes up and down 1 between positive and negative 1 (b) potential difference between the neutral and earth (terminal) accept voltage for p.d or potential of the neutral terminal with respect to earth 1 (c) (i) 0.025 (s) 1 (ii) 40 (Hz) accept 1 ÷ their (a)(i) 1 [5]quotesdbs_dbs12.pdfusesText_18