Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 60, Problem 3RQ
Explain how to test a PNP transistor with an ohmmeter.
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A transistor has a DC Beta of 250 and a base current, IB, of 20 microA. The
collector current, IC, equals *
5 microamperes
500 microamperes
5 milliamperes
50 milliamperes
9. Figure 12-62 shows the output voltage of an op-amp in response to a step input. What is the slew rate?
A
15μs
+12V-
-12V-
Figure 12-62
10. How long does it take the output voltage of an op-amp to go from -10 V to +10 V if the slew rate is 0.5 V/μS?
: 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).
Chapter 60 Solutions
Industrial Motor Control
Ch. 60 - Prob. 1RQCh. 60 - Explain how to test an NPN transistor with an...Ch. 60 - Explain how to test a PNP transistor with an...Ch. 60 - What polarity must be connected to the collector,...Ch. 60 - What polarity must be connected to the collector,...Ch. 60 - Explain the difference between an analog device...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Explain how to test an NPN transistor with an ohmmeter.arrow_forwardWhat polarity must be connected to the collector, base, and emitter of a PNP transistor to make it forward biased?arrow_forwardHow are junction transistors driven into saturation and what is the advantage of driving a transistor into saturation?arrow_forward
- In 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_forwardExplain how to test a diode with an ohmmeter.arrow_forwardIf the temperature of a NTC thermistor increases, will its resistance increase or decrease?arrow_forward
- What is a piezoresistor?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_forwardWhat is the disadvantage of driving a junction transistor into saturation?arrow_forward
- How can a silicon diode be made to measure temperature?arrow_forwardAll electronic components are formed from P-type and N-type materials. What factors determine the kind of components formed?arrow_forward9. Identify the resistance of 5 point the Following Five Band Resistor * 60M Ohms +5% O 4000K Ohms +5% O 2000K Ohm +5%arrow_forward
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