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An instrument used to measure and display waveforms (as voltage versus time) on a screen.
Oscilloscope

This is a symbol used to replace powers of ten that are multiples of 3. For example,10^3 is k, 10^6 is M, 10^3 is m, 10^6 is μ.
Metric Prefix

This is the reciprocal of period and is measured in Hertz (Hz). This term describes how many complete cycles of a periodic signal occur in one second.
Frequency (f)

This term is used for the ratio of the amount of time a periodic pulsed signal is HIGH to the total time period.
Duty Cycle

This notation uses only one digit value to the left of the decimal and uses a powerof ten to represent large numbers.
Scientific Notation

This term defines the time taken by a waveform to complete one full cycle,denoted by T and measured in seconds. This value is the reciprocal of frequency.
Period (T)

This is the term used to describe the movement of free electrons from negative end of a conductive material to the positive end due to the energy provided by the voltage. This flow of electrons is analogous to the flow of water through a pipe in a water system when pressure is applied by a pump. The rate of flow is denoted by I and is measured in amperes.
Current

Similar to scientific notation, except that there can be one to three numbers to the left of the decimal point and the power of ten exponent has to be a multiple of three.
Engineering Notation

This term is used to describe the opposition provided by a conducting material to the free flow of current. This term has units of ohms and is represented by the Greek letter omega.
Resistance

An electronic instrument that produces electrical signals in various forms,including sine waves, triangular (or sawtooth) waves, or pulses (or square waves).
Function Generator

This term is used to define the driving force in an electrical circuit that provides the necessary source of power for the circuit to work and establishes current. This term is designate by the letter V and has units of volts.
Voltage

An electronic instrument that has the capability to measure and display various electrical quantities, including voltage and current and resistance. This device can measure both AC and DC voltage and current values and displays the value on a digital display screen.
Digital Multimeter (DMM)

