EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780176919962
Author: Herman
Publisher: VST
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Textbook Question
Chapter 60, Problem 3RQ
Explain how to test a PNP transistor with an ohmmeter.
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When n-type material is sandwiched
between two p-type materials such type of
transistor is called:
ppn
nnp
npn
pnp
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
Refer to the figure below and calculate the current (in Amps) through the R2 resistor.
Chapter 60 Solutions
EBK 3N3-EBK: 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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- 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. 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?arrow_forward
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