Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 6, Problem 4SQ
Select the best answer for each of the following.
A single-break control is a
a. heavy-duty selector switch.
b. single-circuit push button.
c. standard-duty selector switch.
d. double-circuit push button.
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istics of diodes, bipolar junction transistors, and
plain the structure, operation,
1. The purpose of doping in semiconductor diodes is:
a) To control their electrical properties
b) To increase their physical size
c) To enhance their mechanical strength d) To improve their thermal stability
2. In electronics production, your team wants to manufacture a very cheap diode rectifier.
Which of the following rectifier configurations would you select?
a) Half-wave rectifier
c) Full-wave rectifier
b) Bridge rectifier
d) Controlled rectifier
3. The region that a Zener diode operates to provide voltage regulation is:
a) Saturation
c) Reverse bias
b) Breakdown
d) Forward bias
4. In NMOS transistors, the depth of the channel is primarily changed by:
a) VDS
b) lp
c) VGS
d) None of these
5. NMOS transistors have
than PMOS, resulting in better current conduction:
b) Long channel
a) High mobility
c) Low mobility
d) Short channel
6. You are working in electronic production, and your team is asked to…
Chapter 6 Solutions
Electric Motor Control
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