3) Amplitude modulation 4) Amperes Electronics Quiz‚ Technology Quiz Question: What frequency range is the High Frequency band? 1) 100 kHz 2) 1 GHz 3) 30 to 300 MHz 4) 3 to 30 MHz Electronics Quiz‚ Technology Quiz Question: What does AM mean? 1) Angelo marconi 2) Anno median 3) Amplitude modulation 4) Amperes Electronics Quiz‚ Technology Quiz Question: What frequency range is the High Frequency band?
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Mere static pictures do not do justice to Lissajous Figures. When the horizontal and vertical sine wave frequencies differ by a fixed amount‚ this is equivalent to constantly rotating the phase between them. The figure produced by this rotating phase appears to be a rotating 3D figure. In addition‚ as in 3D wireframe images‚ the figure can appear to rotate in either direction‚ depending on how your brain interprets it. It can also spontaneously reverse the direction of rotation. (In a real
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displacement‚ amplitude‚ period‚ compression‚ rarefaction‚ crest‚ trough‚ transverse waves‚ longitudinal waves‚ frequency‚ wavelength & velocity. Describe the relationship between particle motion and the direction of energy propagation in transverse and longitudinal waves Quantify the relationship between velocity‚ frequency and wavelength v=fλ Where v = velocity‚ f = frequency & λ = wavelength (lambda) Features of a wave model can be used to account for the properties of sound
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ended tube which can be moved in and out of a container of water) constant frequency source (tuning fork or computer generated tone) rubber hammer meter stick rubber stopper Procedure: 1. Set Up the Experiment: Place the open ended tube into the water‚ and verify that it can produce a resonance tube length within the limits set by your instructor. Confirm that you can hear the sound produced by the constant frequency source. If using a tuning fork‚ place it as shown in the picture‚ with the
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DESCRIPTION AND WORKING: Conventionally‚ wireless-controlled robot arms use RF circuits‚ which have the drawbacks of limited working range‚ limited frequency range and limited control. Use of a mobile phone for robotic arm control can overcome these limitations. It provides the advantages of robust control‚ working range as large as the coverage area of the service provider‚ no interference with other
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so if the period is the same then so is the amplitude. Simply the seconds from which we start measuring would be one notch behind‚ so the arch of each wave would be 5 seconds earlier. 6) Using the period from question 1‚ find the frequency of the wave. That frequency is of course way too low for us to hear. Please round you answer to three digits‚ not counting the starting zero; that is‚ round it to four decimal
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hw07-Waves and vibrations – dickerson – (28763) This print-out should have 47 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 1 004 (part 4 of 6) 10.0 points What is its frequency? Correct answer: 6.1216 Hz. 001 (part 1 of 6) 10.0 points A spring with a spring constant of 50.3 N/m is attached to different masses‚ and the system is set in motion. What is its period for a mass of 2.8 kg? 1 = 6.1216 Hz . 0.163356
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to the phase shifter whose output is y(t). The phase shifter only has an effect on the phase‚ while the magnitude is not changed. We know that if we give all the positive frequencies a phase shift of −π /2‚ for a realisable filter‚ the negative frequencies will suffer a phase shift of +π /2. Based on these ideas‚ the frequency response of the phase shifter is shown in the (b) part of the figure. If we examine the filter in more detail‚ the filter response shows that this is the same as the operation
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BC107 BC108 LOW NOISE GENERAL PURPOSE AUDIO AMPLIFIERS DESCRIPTION The BC107 and BC108 are silicon planar epitaxial NPN transistors in TO-18 metal case. They are suitable for use in driver stages‚ low noise input stages and signal processing circuits of television reveivers. The PNP complemet for BC107 is BC177. TO-18 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit BC107 BC108 V CBO Collector-Base Voltage (IE = 0) 50 30
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Problem P2.1 (a) The complex permittivity for bottom round steak is about = 40(1 + i0.3) o at the operating frequency (2.5 GHz) of a microwave oven. What is the penetration depth? (b) Calculate loss tangents and skin depths for sea water at frequencies 60 Hz and 10 MHz. Sea water can be characterized by conductivity σ = 4 mho/m ‚ permittivity = 80 0 ‚ and permeability µ = µo at those frequencies. (c) A 100-Hz electromagnetic wave is propagating down into the sea water with an electric field intensity
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