2010
... Opposite charges attract When you give something an electric charge, Electrons are moving from one thing to another The Force between electric charges depends on the square of the distance An electron has a charge of -1.6 x 10-19 C. If an object has a charge of 8 x 10-19 C, describe what causes the ...
... Opposite charges attract When you give something an electric charge, Electrons are moving from one thing to another The Force between electric charges depends on the square of the distance An electron has a charge of -1.6 x 10-19 C. If an object has a charge of 8 x 10-19 C, describe what causes the ...
How to make Frequency plots with Pspice
... In this particular figure, the top plot is the ratio of the amplitude of the output voltage to the amplitude of the source voltage (gain), while the bottom plot is the phase difference between the input voltage and the output voltage. ...
... In this particular figure, the top plot is the ratio of the amplitude of the output voltage to the amplitude of the source voltage (gain), while the bottom plot is the phase difference between the input voltage and the output voltage. ...
s4rs-electrical-circuit-components
... comparison and recap • A resistor opposes the flow of current • A capacitor stores energy in an electric field • An inductor stores energy in a magnetic field • A diode allows current to flow in one direction while blocking current in the opposite direction ...
... comparison and recap • A resistor opposes the flow of current • A capacitor stores energy in an electric field • An inductor stores energy in a magnetic field • A diode allows current to flow in one direction while blocking current in the opposite direction ...
4.3 Notes - Seymour ISD
... Resistance- measure of the ability of an electrical device to oppose flow of charge through a device Measured in OHMS (Ω) ...
... Resistance- measure of the ability of an electrical device to oppose flow of charge through a device Measured in OHMS (Ω) ...
Circuits and Circuit Diagrams
... If any resistor (bulb) in the circuit is removed or burnt out, then NO BULBS will light – the circuit is not complete. Electric current is the same through each device / resistor / bulb. (I = V/Rtotal) Current stays the same across all resistors. ...
... If any resistor (bulb) in the circuit is removed or burnt out, then NO BULBS will light – the circuit is not complete. Electric current is the same through each device / resistor / bulb. (I = V/Rtotal) Current stays the same across all resistors. ...
Mammography - X
... the prior written consent of copyright holder. X-Alliance reserves the right to make changes in specification and/or to discontinue any product at any time without notice or obligation and will not be liable for any consequences resulting from the use of this publication. ...
... the prior written consent of copyright holder. X-Alliance reserves the right to make changes in specification and/or to discontinue any product at any time without notice or obligation and will not be liable for any consequences resulting from the use of this publication. ...
PowerPoint Presentation - CUE Web Summary for halldweb.jlab.org
... Some Remarks on Calibration of BCAL. After recent I made some tests and communications with I didn’t measure any the BCAL team, seems deterioration of the that we have to use a 2 signal. wire cable, 5-10 cm, from the board so as Do we need an only the LED is extension with the attached on the ...
... Some Remarks on Calibration of BCAL. After recent I made some tests and communications with I didn’t measure any the BCAL team, seems deterioration of the that we have to use a 2 signal. wire cable, 5-10 cm, from the board so as Do we need an only the LED is extension with the attached on the ...
ET 9
... 2. A 240 volt shunt motor has an armature resistance of 0.4 ohm and a field resistance of 120 ohm. It runs at 460 rev/min and the armature current is 25 amperes. What resistance must be placed in the shunt field circuit in order to raise the speed to 560 rev/min, the torque remaining constant. Assum ...
... 2. A 240 volt shunt motor has an armature resistance of 0.4 ohm and a field resistance of 120 ohm. It runs at 460 rev/min and the armature current is 25 amperes. What resistance must be placed in the shunt field circuit in order to raise the speed to 560 rev/min, the torque remaining constant. Assum ...
Digital Examination - Philadelphia University Jordan
... 10- The job of top transistor (T3) in totem pole output is to provide a path for the output ; High impedance. Low impedance.. None of the above 11- In order to increase the switching speed of MOSFET logic, the channel length must be: Increased. Decreased. Not changed. 12- The number of t ...
... 10- The job of top transistor (T3) in totem pole output is to provide a path for the output ; High impedance. Low impedance.. None of the above 11- In order to increase the switching speed of MOSFET logic, the channel length must be: Increased. Decreased. Not changed. 12- The number of t ...
0-10V, PWM, TRIAC Dimmable LED panel
... 0-10 V is one of the earliest and simplest electronic lighting control signaling systems; simply put, the control signal is a DC voltage that varies between zero and ten volts. The controlled lighting should scale its output so that at 10 V, the controlled light should be at 100% of its potential ou ...
... 0-10 V is one of the earliest and simplest electronic lighting control signaling systems; simply put, the control signal is a DC voltage that varies between zero and ten volts. The controlled lighting should scale its output so that at 10 V, the controlled light should be at 100% of its potential ou ...
ECE1250F14_PracticeEx1p2soln
... We look first for components in series carrying the same current. This happens in the second branch with R1 and the dependent voltage source, but we are unconcerned about the current in the voltage source, so we move on. We get equivalent equations from both essential nodes. If we sum the currents ...
... We look first for components in series carrying the same current. This happens in the second branch with R1 and the dependent voltage source, but we are unconcerned about the current in the voltage source, so we move on. We get equivalent equations from both essential nodes. If we sum the currents ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.