Inductive Reactance
... 1. Inductive Reactance slide presentation and notes 2. Lab Activity #1- Show the Effect of Inductance in AC Circuits 3. Lab Activity #2- Solve for Values of an Operating RL Circuit 4. Assignment #1- Compute Inductive Reactance 5. Assignment #2- Compute Applied Voltage and Impedance of RL Circuit 6. ...
... 1. Inductive Reactance slide presentation and notes 2. Lab Activity #1- Show the Effect of Inductance in AC Circuits 3. Lab Activity #2- Solve for Values of an Operating RL Circuit 4. Assignment #1- Compute Inductive Reactance 5. Assignment #2- Compute Applied Voltage and Impedance of RL Circuit 6. ...
Alexander
... • A sinusoid is a signal that has the form of the sine or cosine function. • A general expression for the sinusoid, ...
... • A sinusoid is a signal that has the form of the sine or cosine function. • A general expression for the sinusoid, ...
Last lecture Today`s menu Capacitive sensing elements Capacitive
... Electromagnetic sensing elements. Thermoelectric sensing elements. Elastic sensing elements. Piezoelectric sensing elements. There are more details and some other examples of sensing elements in the book. Read this on your own. The elements presented at the lecture are only examples. Make sure you g ...
... Electromagnetic sensing elements. Thermoelectric sensing elements. Elastic sensing elements. Piezoelectric sensing elements. There are more details and some other examples of sensing elements in the book. Read this on your own. The elements presented at the lecture are only examples. Make sure you g ...
Chapter 18 Powerpoint
... Inductors react against changes in current by consuming or providing voltage in a polarity necessary to oppose the change When an inductor is faced with an increasing current, it acts as a load, by consuming voltage. (series opposing) When an inductor is faced with a decreasing current, it acts as a ...
... Inductors react against changes in current by consuming or providing voltage in a polarity necessary to oppose the change When an inductor is faced with an increasing current, it acts as a load, by consuming voltage. (series opposing) When an inductor is faced with a decreasing current, it acts as a ...
Experiment 2 - Rensselaer Polytechnic Institute
... the concepts of transfer functions and filters. Background Transfer Functions: We know that a circuit with only resistors will behave the same at any frequency. A voltage divider with two 1K resistors divides a voltage in half at 10 Hertz as well as it does at 100K hertz. We also know that circuits ...
... the concepts of transfer functions and filters. Background Transfer Functions: We know that a circuit with only resistors will behave the same at any frequency. A voltage divider with two 1K resistors divides a voltage in half at 10 Hertz as well as it does at 100K hertz. We also know that circuits ...
TR41.3.5-01-11-039-(word)ParallelSetSimulatorCircuit,SWhitesell
... A 200 ohm resistor for currents between 0 and 20 mA. A 100 ohm resistor with a 2 volt offset for currents between 20 and 50 mA. A 53.3 ohm resistor with a 4.33 volt offset between 50 and 106.25 mA. ...
... A 200 ohm resistor for currents between 0 and 20 mA. A 100 ohm resistor with a 2 volt offset for currents between 20 and 50 mA. A 53.3 ohm resistor with a 4.33 volt offset between 50 and 106.25 mA. ...
Crystal radio
A crystal radio receiver, also called a crystal set or cat's whisker receiver, is a very simple radio receiver, popular in the early days of radio. It needs no other power source but that received solely from the power of radio waves received by a wire antenna. It gets its name from its most important component, known as a crystal detector, originally made from a piece of crystalline mineral such as galena. This component is now called a diode.Crystal radios are the simplest type of radio receiver and can be made with a few inexpensive parts, such as a wire for an antenna, a coil of copper wire for adjustment, a capacitor, a crystal detector, and earphones. They are distinct from ordinary radios as they are passive receivers, while other radios use a separate source of electric power such as a battery or the mains power to amplify the weak radio signal so as to make it louder. Thus, crystal sets produce rather weak sound and must be listened to with sensitive earphones, and can only receive stations within a limited range.The rectifying property of crystals was discovered in 1874 by Karl Ferdinand Braun, and crystal detectors were developed and applied to radio receivers in 1904 by Jagadish Chandra Bose, G. W. Pickard and others.Crystal radios were the first widely used type of radio receiver, and the main type used during the wireless telegraphy era. Sold and homemade by the millions, the inexpensive and reliable crystal radio was a major driving force in the introduction of radio to the public, contributing to the development of radio as an entertainment medium around 1920.After about 1920, crystal sets were superseded by the first amplifying receivers, which used vacuum tubes (Audions), and became obsolete for commercial use. They, however, continued to be built by hobbyists, youth groups, and the Boy Scouts as a way of learning about the technology of radio. Today they are still sold as educational devices, and there are groups of enthusiasts devoted to their construction who hold competitions comparing the performance of their home-built designs.Crystal radios receive amplitude modulated (AM) signals, and can be designed to receive almost any radio frequency band, but most receive the AM broadcast band. A few receive shortwave bands, but strong signals are required. The first crystal sets received wireless telegraphy signals broadcast by spark-gap transmitters at frequencies as low as 20 kHz.