ICSE Guess Paper - 2008
... through a 8 ohm coil. Calculate the emf and the internal resistance of the cell. Solution :- Here, I1 = 0.6 A, R1 = 2 Ω, I2 = 0.3 A, R2 = 8 Ω, r = ? Using, I = E/(R + r), we get 0.6 = E /(2 + r) --- --- --- --- (i) 0.3 = E / (8 + r) --- --- --- --- (ii) from (i) and (ii) we get 0.6(2 + r) = 0.3(8 + ...
... through a 8 ohm coil. Calculate the emf and the internal resistance of the cell. Solution :- Here, I1 = 0.6 A, R1 = 2 Ω, I2 = 0.3 A, R2 = 8 Ω, r = ? Using, I = E/(R + r), we get 0.6 = E /(2 + r) --- --- --- --- (i) 0.3 = E / (8 + r) --- --- --- --- (ii) from (i) and (ii) we get 0.6(2 + r) = 0.3(8 + ...
ELE 427 Homework #1 Fall `07
... 2. Consider an unloaded potentiometer with total resistance Rp = 1KΩ and 5 volts supplied across this resistance. The output of the unloaded potentiometer is 5α, where 0 ≤ α ≤ 1 is proportional to the angular position of the potentiometer shaft. If this potentiometer is connected to a load resistanc ...
... 2. Consider an unloaded potentiometer with total resistance Rp = 1KΩ and 5 volts supplied across this resistance. The output of the unloaded potentiometer is 5α, where 0 ≤ α ≤ 1 is proportional to the angular position of the potentiometer shaft. If this potentiometer is connected to a load resistanc ...
Electricity 1
... An electric circuit is a closed path through which electrons flow. This type of path is made up of wires and other electrical components, such as batteries, light bulbs, and switches. The purpose of an electric circuit is to allow electric current to perform a useful task, such as creating light, pr ...
... An electric circuit is a closed path through which electrons flow. This type of path is made up of wires and other electrical components, such as batteries, light bulbs, and switches. The purpose of an electric circuit is to allow electric current to perform a useful task, such as creating light, pr ...
Basics of Electricity Web Quest Name _____________________________
... 11. Name the instrument used to measure the amount of amps flowing in an electrical circuit. ________________________________________________________________________ http://www.ndt-ed.org/EducationResources/HighSchool/Electricity/voltage.htm 12. What is the force that causes electrons to move in an ...
... 11. Name the instrument used to measure the amount of amps flowing in an electrical circuit. ________________________________________________________________________ http://www.ndt-ed.org/EducationResources/HighSchool/Electricity/voltage.htm 12. What is the force that causes electrons to move in an ...
BDTIC C C M - P F C
... operating range is between 11V and 26V. The turn-on threshold is at 11.8V and under voltage occurs at 11V. There is no internal clamp for a limitation of the power ...
... operating range is between 11V and 26V. The turn-on threshold is at 11.8V and under voltage occurs at 11V. There is no internal clamp for a limitation of the power ...
BDTIC www.BDTIC.com/infineon Industrial and Multimarket LED Controller IC
... begins to operate. Once the mains input voltage is applied, a rectified voltage shows across the capacitor Cbus. The high voltage device provides a current to charge the VCC capacitor Cvcc. Before the VCC voltage reaches a certain value, the amplitude of the current through the high voltage device i ...
... begins to operate. Once the mains input voltage is applied, a rectified voltage shows across the capacitor Cbus. The high voltage device provides a current to charge the VCC capacitor Cvcc. Before the VCC voltage reaches a certain value, the amplitude of the current through the high voltage device i ...
lesson3-student-answers 2483KB Apr 09 2015 10:22:46 AM
... Coulombs have to fall this distance to return to the battery. 4) What does our model predict the voltage drop across the other light bulb will be? Explain. Our model predicts that the voltage (potential) drop across the light bulb will be 1 Volt. The Coulombs have to fall this distance to return to ...
... Coulombs have to fall this distance to return to the battery. 4) What does our model predict the voltage drop across the other light bulb will be? Explain. Our model predicts that the voltage (potential) drop across the light bulb will be 1 Volt. The Coulombs have to fall this distance to return to ...
Pre-Lab: Electric Fields
... d. power 8. A voltmeter measures the _____ between two points in a circuit and therefore, must be placed across a part of the circuit. a. resistance b. current c. voltage d. power 9. In part 3, Ammeter, where do you connect your leads to your galvanometer? a. plug into the binding posts/terminals b. ...
... d. power 8. A voltmeter measures the _____ between two points in a circuit and therefore, must be placed across a part of the circuit. a. resistance b. current c. voltage d. power 9. In part 3, Ammeter, where do you connect your leads to your galvanometer? a. plug into the binding posts/terminals b. ...
Synergistic Design of DSP and Power Amplifiers for Wireless Communications
... (a sequence of pulses of fixed pulse duration). The clock rate can be chosen to be not very much higher than the center frequency of interest (typically 4 ). The bandwidth of interest, however, must be a relatively small fraction of the center frequency and clock rate, such that a high effective “ov ...
... (a sequence of pulses of fixed pulse duration). The clock rate can be chosen to be not very much higher than the center frequency of interest (typically 4 ). The bandwidth of interest, however, must be a relatively small fraction of the center frequency and clock rate, such that a high effective “ov ...
STD815CP40
... The STD815CP40 is a hybrid complementary pair of power bipolar transistors manufactured by using the high voltage multi-epitaxial planar technology for high switching speeds and medium voltage capability. ...
... The STD815CP40 is a hybrid complementary pair of power bipolar transistors manufactured by using the high voltage multi-epitaxial planar technology for high switching speeds and medium voltage capability. ...
Monolithic Amplifier
... Mini-Circuits PMA-545G3+ is a E-PHEMT based Low Noise MMIC Amplifier operating from 0.7 to 1.0 GHz with a unique combination of low noise and high Gain making this amplifier ideal for sensitive receiver applications. This design operates on a single +5V supply and is internally matched to 50 Ohms. ...
... Mini-Circuits PMA-545G3+ is a E-PHEMT based Low Noise MMIC Amplifier operating from 0.7 to 1.0 GHz with a unique combination of low noise and high Gain making this amplifier ideal for sensitive receiver applications. This design operates on a single +5V supply and is internally matched to 50 Ohms. ...
AL8807Q Description Pin Assignments
... LED current can be adjusted digitally, by applying a low frequency Pulse Width Modulated (PWM) logic signal to the CTRL pin to turn the device on and off. This will produce an average output current proportional to the duty cycle of the control signal. In particular, a PWM signal with a max resoluti ...
... LED current can be adjusted digitally, by applying a low frequency Pulse Width Modulated (PWM) logic signal to the CTRL pin to turn the device on and off. This will produce an average output current proportional to the duty cycle of the control signal. In particular, a PWM signal with a max resoluti ...
SGC-6489Z 数据资料DataSheet下载
... RFMD’s SGC-6489Z is a high performance SiGe HBT MMIC amplifier utilizing a Darlington configuration with an active bias network. The active bias network provides stable current over temperature and process Beta variations. Designed to run directly from a 5V supply, the SGC-6489Z does not require a d ...
... RFMD’s SGC-6489Z is a high performance SiGe HBT MMIC amplifier utilizing a Darlington configuration with an active bias network. The active bias network provides stable current over temperature and process Beta variations. Designed to run directly from a 5V supply, the SGC-6489Z does not require a d ...
Specification Status: Released PolyZen GENERAL DESCRIPTION
... enhanced, precision Zener diode microassemblies. They offer resettable protection against multi-Watt fault events without the need for multi-Watt heat sinks. The Zener diode used for voltage clamping in a PolyZen micro-assembly was selected due to its relatively flat voltage vs current response. Thi ...
... enhanced, precision Zener diode microassemblies. They offer resettable protection against multi-Watt fault events without the need for multi-Watt heat sinks. The Zener diode used for voltage clamping in a PolyZen micro-assembly was selected due to its relatively flat voltage vs current response. Thi ...
111.8.97. - University of Bath Opus
... We report the operation of polycrystalline silicon ion sensitive field effect transistors. These devices can be fabricated on inexpensive disposable substrates such as glass or plastics and are, therefore, promising candidates for low cost single-use intelligent multisensors. In this work we have dev ...
... We report the operation of polycrystalline silicon ion sensitive field effect transistors. These devices can be fabricated on inexpensive disposable substrates such as glass or plastics and are, therefore, promising candidates for low cost single-use intelligent multisensors. In this work we have dev ...
by emeh henry nnaemeka ee/2008/293
... times colloquially called a micro mike is an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, live and recorded audio engineering, in radio and television broadcasting and in computers ...
... times colloquially called a micro mike is an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, live and recorded audio engineering, in radio and television broadcasting and in computers ...
Experiment 4 Cathode Ray Oscilloscope and Multimeter
... various circuits to vary the proportionality be- beam is then subjected to SHM in two dimensions tween the input signal and the movement of the and has a trajectory which is referred to as a dot.Thus allowing for a “zooming” of the plot or a Lissajous figure.When the the frequencies match, “contract ...
... various circuits to vary the proportionality be- beam is then subjected to SHM in two dimensions tween the input signal and the movement of the and has a trajectory which is referred to as a dot.Thus allowing for a “zooming” of the plot or a Lissajous figure.When the the frequencies match, “contract ...
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.