The responsivity unit is V/W True False Receivers are used to recover the signal as an electrical signal True False The external photoelectric effect is one of the photodetection mechanisms True False Photodiode packages are similar to those of the LED and laser diodes True False Name the three most important characteristics of a photodetector

The responsivity unit is V/W True False Receivers are used to recover the signal as an electrical signal True False The external photoelectric effect is one of the photodetection mechanisms True False Photodiode packages are similar to those of the LED and laser diodes True False Name the three most important characteristics of a photodetector

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 2PA: You are an electrician working in an industrial plant. You discover that the problem with a certain...

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You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.
Which of the following is not a requirement for an electric circuit? a. a source b. a path c. a load d. a signal light
A diode that has a the property of negative resistance and is used in oscillaor circuits is the: Select one: a. PIN b. Zener diode c. Schottky diode d. Tunnel diode e. Laser diode
Which statement(s) is(are) true for photomultiplier tubes?I Photomultiplier tubes are very sensitive detectors, amplifying the photoelectron current by approximately 1 million.II Emitted photoelectrons are accelerated toward positively charged electrodes called dynodes.III Electrons strike the dynode with a kinetic energy less than the original emitted kinetic energy.IV For each electron striking a dynode, more than one electron is knocked free. The additional electrons are accelerated toward the next dynode in the detector where amplification is repeated. Select one: a. II, III, and IV b. II c. I, II, and IV d. II and III e. I and IV
For the following figure. if Rx = 1466.66 . Assuming that the diode is ideal and the input impedance of the voltmeter is infinite. the reading of the voltmeter is:
For a half-wave rectifier that converts 60Hz AC to 12V DC voltage with no more than 1% ripple at a load current of 1A, the required capacitance of the filter capacitor should be at least
A diode generator is required to produce 14 micro volts of noise in a receiver with aninput impedance of 75 ohms and a noise power bandwidth of 200 kHz. Determine thecurrent through the diode in milli amperes.
ECETopic: Thyristor3. What is the difference between 2N6505 and 2N6508 SCR?
In electronics, a clipper is a circuit designed to prevent a signal from exceeding a predetermined reference voltage level. A clipper does not distort the remaining part of the applied waveform. Clipping circuits are used to select, for purposes of transmission, that part of a signal waveform which lies above or below the predetermined reference voltage level. A biased clipper comes in handy when a small portion of positive or negative half cycles of the signal voltage is to be removed. ... Thus a biased negative clipper removes input voltage when the input signal voltage becomes greater than the battery voltage. QUESTION: Where do we exactly need to use a clipper circuit? State at least 3 examples and why it's needed on that application or device.
For a half-wave rectifier that converts 60Hz AC to 12V DC voltage with no more than 1% ripple at a load current of 1A, the required capacitance of the filter capacitor should be at least ________F.
Answer the ff.__________1. A wave shaping circuit which controls the shape of the output waveform by removing a portion of the applied wave. __________2. An electronic circuitthat fixes either the positive or the negative peak excursions of a signal to a defined value by shifting its DC value. __________3. A form of semiconductor diode in which at a critical reverse voltage a large reverse current can flow. __________4. An electronic component composed of two conductive plates separated by an insulator. __________5. A type of capacitor used in sensing applications as well as in RF electronics. __________6. A type of capacitor where the cross-sectional area is changed as one set of plates are rotated with respect to the other. __________7. A material used as electrodes for an electrolytic capacitor aside from aluminum.
A full-wave rectifier produces a 32V peak rectified voltage from a 50Hz ac source. Determine the filter capacitor needed to provide a DC output voltage 24V across a 500 ohm load.