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For a pendulum, or a child on a swing: Change the length of the pendulum or the swing-chains. For a guitar string: Change the tension (tune it), or the length (squeeze it into a fret). For an electronic oscillator: Change the piezo crystal, or change a capacitor or inductor for one of a different value.
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What is the ratio of a frequency to its total frequency?
The ration of a frequency to its total frequency is called relative frequency.
What is frequency meter?
frequency meter is used to measure the frequency of unknown frequency signal.
What is the frequency in a frequency table?
The frequency in a frequency table is the number of occurrences within each class width. The total frequency is the sum of all frequency's within all the classes.
How are frequency and wave period related?
Period = 1 / frequency
How do you make a cumulative frequency table?
Given a frequency table,the first cumulative frequency is the same as the first frequency;the second cumulative frequency is the sum of the first cumulative frequency and the second [ordinary] frequency;the third cumulative frequency is the sum of the second cumulative frequency and the third [ordinary] frequency;and so on.An alternative definition is that the cumulative frequency for any value is the sum of all the frequencies less than or equal to that value.
What does frequency control in light?
Frequency controls the color of the light.
What is the best frequency to control a dog?
There is no best frequency. If you train a dog correctly any frequency the dog can hear will control it. Your voice, whistle, 'silent' whistle. All are acceptable.
Electronic component used to control speed of a motor?
In industrial, there is a device called variable frequency drive (allso frequency inverter, ac drive) to control the motor speed by adjusting output frequency.
Name four uses for vabiable resistor?
Volume Control Light Control Speed/Frequency Control Temperature Control
Define the terms logging interval dedicated control system and Frequency of Sampling?
what do you mean by terms under damped, critical damped and over damped frequency of control system?
What is mean by load frequency control?
Power sharing between two areas occurs through these tie-lines. Load frequency control, as the name signifies, regulates the power flow between different areas while holding the frequency constant.
What is frequency dead band in turbine control system?
it is range of frequency variation for which governor does not take any proportional corrective action.
What is meant by free running frequency in phase locked loop?
The VCO is a special type of oscillator that has a frequency controlled by an applied voltage.The frequency of the VCO without any control signal applied is called the free running frequency.
What is the need of conversion from time to frequency domain?
Design of filtering and control systems is usually easier in the frequency domain than in the time domain.
How does a frequency drive work?
Frequency drives are an adjustable-speed drive used for electro-mechanical drive systems. They control the motor speed and torque by varying motor input frequency and voltage.
What are the types of motor controls?
motor can be control by using variable frequency drive
Speed control of a.c motor?
Use a variable Frequency Drive. Sold by ABB, Allen-Bradley, and many others.
