Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 14, Problem 14RQ
Assume that a silicon diode is being used as a temperature detector. If its temperature increases, will its voltage drop increase or decrease?
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MEMS contain components of sizes ranging from:
O 1 mm to 10 mm
O 1 nm to 100 nm
O 1μm to 1 mm
O 10 mm to 100 mm
O 100 mm to 200 mm
Distinguish between conductors and semiconductors under the following headings: temperature, coefficient of resistance and band theory.
2. Calculate the room temperature saturation current and the forward current at 0.3V for
a silver/n-doped silicon Schottky-type diode. Take for the active area 108m² and
C=10¹⁹ A/m²K².
Chapter 14 Solutions
Industrial Motor Control
Ch. 14 - Should a metal bar be heated or cooled to make it...Ch. 14 - Prob. 2RQCh. 14 - Prob. 3RQCh. 14 - Why are bimetal strips often formed into a spiral...Ch. 14 - Why should electrical contacts never be permitted...Ch. 14 - What two factors determine the amount of voltage...Ch. 14 - Prob. 7RQCh. 14 - Prob. 8RQCh. 14 - Prob. 9RQCh. 14 - Prob. 10RQ
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- How can a silicon diode be made to measure temperature?arrow_forwardRelative to the atomic force microscopy (AFM), Name three forces that can be sensed by an AFM cantilever and explain how the spring constant of a cantilever can affect the output image in AFM.arrow_forwardA thermionic generator with a cathode work function of 2.2 V and an anode work function of 1.6 V operates at a cathode temperature of 1400 K. For ideal values, assume zero retarding voltage in the interspace. (a) What should be the approximate anode temperature? (b) What would be the ideal current density? (c) Calculate the ideal power output per cm’ and the thprmal efficiency. Your answerarrow_forward
- : What is Zener diode? Explain the working of a Zener diode as a voltage regulator with the help of its current-voltage diagram (draw current- voltage diagram).arrow_forwardHow are junction transistors driven into saturation and what is the advantage of driving a transistor into saturation?arrow_forwardIn a zener diode circuit, the current-limiting resistor limits the total circuit current to 150 milliamperes. If the load circuit is drawing a current of 90 milliamperes, how much current is flowing through the zener diode?arrow_forward
- All electronic components are formed from P-type and N-type materials. What factors determine the kind of components formed?arrow_forwardWhich type of semiconductor material can withstand the greatest amount of heat?arrow_forwardA 5.1-volt zener diode is to be connected to an 8-volt power source. The current must be limited to 50 milliamperes. What value of current-limiting resistor must be connected in series with the zener diode?arrow_forward
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