Arizona State University - West Campus
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Zener diode is a voltage regulator device 
because it is able to fix the output voltage at 
a constant value (DC voltage). 
 RS is to limit the zener current, IZ so that it is 
less than the maximum current, IZM (to 
avoid the zener diode from broken).
A diode is used to pass current in a single direction. Alternating current is a current which flows 
in both directions. In some applications we need dc (direct current) power supply. A method to 
obtain dc supply is by using batteries. But it is not economical at all times. It is possible to obtain 
dc from ac supply .That process is known as rectification. Rectification is of two types: 
 1. Half wave rectification 
 2. Full wave rectification
Definition of Diode 
Current and Voltage 
• Forward Bias 
•When ID > 0mA 
and VD > 0V 
• Reverse Bias 
•When ID < 0mA 
and VD < 0V
Definition of Diode 
Current and Voltage 
• Forward Bias 
•When ID > 0mA 
and VD > 0V 
• Reverse Bias 
•When ID < 0mA 
and VD < 0V
Definition of Diode 
Current and Voltage 
• Forward Bias 
•When ID > 0mA 
and VD > 0V 
• Reverse Bias 
•When ID < 0mA 
and VD < 0V
An equivalent circuit is nothing but a combination of elements that best represents the actual 
terminal characteristics of the device. In simple language, it simply means the diode in the circuit 
can be replaced by other elements without severely affecting the behavior of circuit. 
The diode can be modeled in three different ways depending on the accuracy required.
Arizona State University Online 
BIO 201 - Human Anatomy & Physiology I Lecture and Laboratory (4 credits 2024) 
 
 
Faculty 
Dr. Delon Washo-Krupps Office: Tempe, AZ Phone: (480) 965-4501 
Email address: Office hours: Arranged via email 
 
Catalog Description 
Biology 201 is the study of structure and function of the human body. Topics include: Surface Anatomy, Chemistry, Cells, Genetics, Histology, Integumentary System, Skeletal System, Joints, Muscular System, Central/Peripheral/Autonomic Ne...
Which Incident Type requires one or two single resources with up to six personnel? -ans 
Type 5 
Which of the following would NOT typically be included in the transfer of command 
briefing? -ans Special requests from agency representatives 
An Incident Commander's scope of authority comes from the Incident Action Plan. -ans 
False 
Which Incident Type requires or national resources with up to 200 personnel per 
operational period? -ans Type 2 
Which of the foll
Identify each statement about the Wiencek excerpt as either true or false. 
Statement True False 
In the article, Thomas Jefferson is presented as a man who valued personal 
wealth and comfort over human life. 
Wiencek’s research did not include any works or documents by slaves or their 
descendants. 
Wiencek disagrees with the conventional image of Thomas Jefferson as idealistic 
freedom fighter trapped by a slavery-condoning society. 
Points: 
0.67 / 1 
Close Explanation 
Explanation: 
Henry...
1.	What year did Imhotep (Egyptian) described the diagnosis and treatment of 200 dis- eases	2600 BC 
2.	What year did Al- cmaeon of croton char- acterize the difference between veins and ar- teries	500 BC 
3.	What is another name for Hippocrates?	The father of medicine 
4.	What year was Hip- pocrates born?	460 BC 
5.	When did Diocles write the first known book anatomy book?	300 BC 
6.	When did Herophilus begin the study of the nervous system	280 BC 
7.	When is Galen born?	130 AD 
8.	Who is Galen...