driven by a sinusoidal source at a 3-1 given frequency. Subsequently‚ the frequency response of both a low-pass filter and a high-pass filter will be considered. 3.2 Objectives At the end of this experiment‚ the student will be able to: (1) Determine the steady-state behavior of linear circuits driven by sinusoidal sources‚ (2) Use the oscilloscope to measure the phase difference between two sinusoidal signals‚ (3) Determine analytically the frequency response of a network‚ (4) Construct Bode plots
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fork is set vibrating at the same frequency as the tuning fork. The length and tension in the string are adjusted until standing waves are observed on the string. By knowing the tension in the string and the wavelength of the standing waves‚ the frequency of oscillation of the string and thus‚ the tuning fork is found. This value is then compared to a strobelight determination of the frequency. THEORY If transverse waves of constant frequency and amplitude are sent down a string
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Measuring Time Date Due: 2013.09.23____ Name: Lily Li____ Class: A__ Teacher: ___Mrs Slater___ Purpose: To determine the period and the frequency of a ticker timer. Materials/Apparatus: One ticker timer One carbon paper disc One 1.5+ meter tape One test tape One stop-watch Theory: The recording timer is a device that helps you study motion‚ it is a simple electric device plugged
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EXPERIMENT NO. 1 AIM :- To study wave guide components. APPARATUS REQUIRED :- Flanges‚ Twisted wave guide‚ wave guide tees‚ Directional Coupler‚ Attenuator‚ Isolators‚ Circulators‚ Matched terminator‚ Slide screw tuner‚ Slotted Section‚ Tunable probe‚ Horn antennas‚ Movable Short‚ Detector mount. THEORY:- A pipe with any sort of cross- section that could be used as a wave guide or system of conductors for carrying electromagnetic wave‚ is called a wave guide in which the waves are truly guided.
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What is sound? Sound is a wave‚ a pattern—simple or complex‚ depending on the sound—of changing air pressure. Sound is produced by vibrations of objects. The vibrations push and pull on air molecules. The pushes cause a local compression of the air (increase in pressure)‚ and the pulls cause a local rarefaction of the air (decrease in pressure). Since the air molecules are already in constant motion‚ the compressions and rarefactions starting at the original source are rapidly transmitted through
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medium ∗ Medium is more important in setting transmission parameters – Unguided medium ∗ Bandwidth of the signal produced by transmitting antenna is important in setting transmission parameters ∗ Signal directionality · Lower frequency signals are omnidirectional · Higher frequency signals can be focused in a directional beam • Design of data transmission system – Concerned with data rate and distance – Bandwidth ∗ Higher bandwidth implies higher data rate – Transmission impairments ∗ Attenuation ∗ Twisted
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UltraSonic Waves? Ultrasonic waves are sound waves with frequencies high about human hearing and short wave lengths. Sound waves have frequencies about 20‚000 to 100‚000. Also Ultrasound frequencies range from 20 kHz (the upper range of hearing for a young adult human) through 150 kHz (audible to some bats and other creatures)‚ right up to 10 MHz (used in some medical treatments and industrial cleaning applications). While these frequencies overlap with those of radio waves‚ they are different because
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‘‘Wavelength‚ Frequency‚ Energy and Flame Color Produced by Different Metals’’ Period 8 October 30th 2013 October 24th 2013 Sosa #2 ABSTRACT: The purpose of this project was to identify the different flame colors that the different metals release‚ compare the flame colors with wavelength‚ compare the wavelength of different flames to their frequencies and energies‚ explain how the flames colors were produced‚ compare and contrast the results obtained in the lab with regard
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Figure 5.19 The mortar in unreinforced masonry walls such as these in Iran‚1990(A) can easily fail during an earthquake. Oftentimes the entire structure crumbles‚ leaving a pile of rubble in which survive. Shown in(B) is one of the many masonry homes to collapse during the 1988 Armenia earthquake (M6.9)‚ claiming nearly 25‚000 lives. The failure is called soft-story collapse. Soft-story collapse is a common problem in commercial building where the first floor has considerable open space for
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reflected wave. This system permits easy control of the reflection coefficient and eliminates feedback instability. Arbitrary reflection coefficients between almost 0 and about 1.5 have been realized in the frequency range from below 100 Hz to more than 800 Hz. Introduction The absorption of low-frequency sound is difficult with conventional‚ passive methods. Active (electroacoustic) methods are becoming more and more important. The state of entering into engineering practice has been reached especially
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