1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PolarNik [594]
3 years ago
6

Multiple Choice

Engineering
1 answer:
12345 [234]3 years ago
6 0

Answer:https://global.oup.com/us/companion.websites/9780199385423/student/ch6/mcq/     just go here

Explanation:

You might be interested in
Design a half-wave recti er which provides a peak voltage of 15 V, and anaverage voltage of 3.8 V when driven by a 120 V (rms) a
nirvana33 [79]

Answer:

You need a 120V to 24V commercial transformer  (transformer 1:5), a 100 ohms resistance, a 1.5 K ohms resistance and a diode with a minimum forward current of 20 mA (could be 1N4148)

Step by step design:

  1. Because you have a 120V AC voltage supply you need an efficient way to reduce that voltage as much as possible before passing to the rectifier, for that I recommend a standard 120V to 24V transformer.  120 Vrms = 85 V and 24 Vrms = 17V = Vin
  2. Because 17V is not 15V you still need a voltage divider to step down that voltage, for that we use R1 = 100Ω and R2 = 1.3KΩ. You need to remember that more than 1 V is going to be in the diode, so for our calculation we need to consider it. Vf = (V*R2)/(R1+R2), V = Vin - 1 = 17-1 = 16V and Vf = 15, Choosing a fix resistance R1 = 100Ω and solving the equation we find R2 = 1.5KΩ
  3. Finally to select the diode you need to calculate two times the maximum current and that would be the forward current (If) of your diode. Imax = Vf/R2 = 10mA and If = 2*Imax = 20mA

Our circuit meet the average voltage (Va) specification:

Va = (15)/(pi) = 4.77V considering the diode voltage or 3.77V without considering it

6 0
3 years ago
You installed a new 40 gallon water heater with a 54,000 BTUh burner. The underground water temperature coming into the house is
kipiarov [429]
14256000. Kanjiuijhgg
5 0
2 years ago
Read 2 more answers
Repetitive movements at work can lead to injuries. True or False
OverLord2011 [107]
Answer

True

Explanation

RSI can occur when you do repetitive movements. Those movements can cause your muscles and tendons to become damaged over time. Some activities that can increase your risk for RSI are: stressing the same muscles through repetition.
8 0
2 years ago
How many GT2RS cars were made in 2019
labwork [276]

Answer:

1000

Explanation:

3 0
3 years ago
Read 2 more answers
Learning the key concepts of each approach is essential to successful management of a project. What type of unpredictability is
Levart [38]

Answer:

lemme write it down

Explanation:

hold down okay

3 0
3 years ago
Other questions:
  • A turbine operates at steady state, and experiences a heat loss. 1.1 kg/s of water flows through the system. The inlet is mainta
    6·1 answer
  • Consider the following grooves, each of width W, that have been machined from a solid block of material. (a) For each case obtai
    8·1 answer
  • 2. Write a Java program that generates a new string by concatenating the reversed substrings of even indexes and odd indexes sep
    10·1 answer
  • Define the coefficient of determination and discuss the impact you would expect it to have on your engineering decision-making b
    15·1 answer
  • An air-conditioning system operating on the reversed Carnot cycle is required to transfer heat from a house at a rate of 755 kJ/
    7·1 answer
  • Introduction to gear and gear ratios: If you have two gears of the same size does the output speed increase, decrease, or remain
    13·1 answer
  • What is the command in the java script that receives data from the user
    10·1 answer
  • For a bolted assembly with eight bolts, the stiffness of each bolt is kb = 1.0 MN/mm and the stiffness of the members is km = 2.
    14·1 answer
  • There are three different types of slings. What determines which type you use?
    13·1 answer
  • A single-phase load is located 2800 ft from its source. The load draws a current of 86 A and operates on 480 V. The maximum volt
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!