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Electrical Engineering homework help

Compare and contrast troubleshooting strategies for decorative lighting. Discuss the pros and cons of each configuration.

Compare and contrast troubleshooting strategies for decorative lighting.
Discuss the pros and cons of each configuration.

When lights are connected in series,  electricity flows from the power source to the first light and then from  light to light until it returns to the power source. The wiring becomes  apparent when one of the lights’ filaments burns out in this  configuration. Since no energy can pass through any of the cables,  malfunctioning or open circuits cause all the lights to go out, as was  previously mentioned. Each morning connected in series with the others  has its own trajectory that connects to the power supply. Although all  the lights are still connected to the power source in a closed circuit  if one filament burns out, the other lights are unaffected.
When my bulbs blew out, I would unplug  the lights and twist the bulb around until it came on and if that didn’t  work, I would simply bring it back to the store and swap it out for a  new one.
References:
Wood, D., (2015, December 16). How do Holiday Lights Work? Retrieved,  November 23, 2022.                                                                                         How Do Holiday Lights Work? | Department of Energy

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Electrical Engineering homework help

Compare and contrast troubleshooting strategies for decorative lighting.

Compare and contrast troubleshooting strategies for decorative lighting.
Discuss the pros and cons of each configuration.
There  are typically two kinds of circuits use in decorative lighting systems.  The first, being series circuits which just conducts power to each light  sequentially down the strand. The second, parallel circuits, is wired  alternatingly so that if a few bulbs go out, it won’t shut off power to  the rest.
Honestly, I’ve always had very simple lighting systems on and in my  house. Typically, for the tree we just have it on a flash setting with a  timer. For outside, usually, we just have constant lights that get  turned off during the day and come on when it is dark, for me 6-7p.m.  Eventually, I want to have a lightshow, I think that would be cool  especially, taking inspiration from some of the videos I’ve seen with  drones.
References
Davis, J. (2011, March 9). Types of Circuits in Christmas Lights. EHow.com; eHow.com. https://www.ehow.com/info_8041123_types-circuits-christmas-lights.html

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Electrical Engineering homework help

Identify parts of the E-Cig that constitute voltage, current, and  resistance.

Identify parts of the E-Cig that constitute voltage, current, and  resistance. Discuss the role each plays in the E-Cig and typical values  for each including units.
E-Cigs (or vapes) consist of a battery, typically lithium-ion, that  connects to a single or dual heating coil into the reservoir of vape  liquid. I’m going to use the specs for a vape that I’m currently using,  called the Elf Bar BC5000. It consists of a 650mAh (nominal voltage is  3.7 V) rechargeable lithium-ion battery, a dual coil, and a cotton  reservoir filled with 13ml of juice (nicotine salts). As a user hits or  pulls air from the mouthpiece, the airflow activates a sensor switch to  the battery and sends current through the circuit to the atomizer which  houses a coil(s). The coils offer resistance. The only resistance  information I could find for Elf Bar mesh coils is around 1.2 ????. The  lower the resistance, the more heat and vapor are produced, and the  stronger the hit. The higher the resistance, the less vapor and heat are  produced and smoother the hit. The coil(s) heats the “wick” which is  typically cotton inside of a reservoir filled with juice creating vapor  which expels through the mouthpiece. Using Ohm’s Law and assuming the  resistance is 1.2 ????, we can determine the current for this disposable  vape is 3.7V/1.2 ????=3.08333333A.
Discuss the electrical dangers of an E-Cig. Give specific examples.
One of the primary electrical dangers associated with E-Cigs or vapes  are the batteries. The type of batteries used in these devices has been  unregulated. Lithium-ion batteries can be dangerous if they become  damaged or over-heated. The chemical within the battery reacts to oxygen  and can combust. If this happens while in use or carried by and  individual, serious injury can occur.
There are many electrical safety rules.  Pick one, and discuss its application on a small system, such as the E-Cig.
It is important to know the requirements for each specific device.  Due to the sensitive nature of lithium-ion batteries, it is important to  handle them with care. Use the correct charger that comes with the  device or charger specified. Be sure to charge away from flammable  materials and do not leave the device charging overnight or for extended  periods of time.
References:
Center for Tobacco Products. (2022, February 16). Tips to Help Avoid Vape Battery or Fire Explosions. U.S. Food And Drug Administration. https://www.fda.gov/tobacco-products/products-ingredients-components/tips-help-avoid-vape-battery-or-fire-explosions
Links to an external site.
Cozens, N. (2022, July 6). Elf Bar ELFA Prefilled Pod Kit Review – The Sustainable Idea Of No Wasted Battery. Ecigclick. https://www.ecigclick.co.uk/elf-bar-elfa-prefilled-pod-kit-review/
Links to an external site.
Electric Tobacconist. (n.d.). What is coil resistance? The Electric Tobacconist Ltd. https://help.electrictobacconist.co.uk/support/solutions/articles/5000758291-what-is-coil-resistance-
Links to an external site.
Rubery, H. (2022, August 30). Why Do Disposable Vapes Taste Better? https://www.podsalt.com/blog/post/why-do-disposable-vapes-taste-better
Links to an external site.
Velvet Cloud. (2018, June 19). Ohm’s Law 101 and E-Cig Tech: Understanding Vape Electrical Lingo. https://velvetcloud.com/blogs/news/ohms-law-101-and-e-cig-tech-understanding-vape-electrical-lingo

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Electrical Engineering homework help

Identify those factors that you think are most important for a strong President and identify which President between 1877 and 2020 best exemplifies these traits. 

Americans have increasingly recognized the importance of the President as the leader of the nation over the course of the 20th Century.  Identify those factors that you think are most important for a strong President and identify which President between 1877 and 2020 best exemplifies these traits.  Be sure to use specific examples of actions demonstrated by your chosen President that demonstrate his effectiveness.

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  For this week’s discussion, I have  decided to discuss how the SUMIF function

 
For this week’s discussion, I have  decided to discuss how the SUMIF function is used for calculating  individual hours contributed to a project. The SUMIF function is used  often for financial work, such as budgeting or manpower allocation. It  is a math function based on operators such as less than <, greater  than >,  less than or greater than < >, and equal to = just for  a few examples but also considers other functions such as * and ?.
As with all functions within Excel it  requires a formula that must meet certain criteria. In the case of SUMIF  the formula must contain the following:
Range 

These are the cells we will apply the criteria to.

Criteria 

The provided criteria can be: 

An expression 

“<5”, “=20”, “= or < 32” A numeric value  Integer, decimal, logic value for example or optionally you can include a Sum range which is a group of cells  that are to be added together if the range entry meets a supplied  criterion.  One example of how the SUMIF function  works would be if you want to calculate how many hours individual  employees contributed to a project you can use SUMIF to select a  particular name, word, or phrase from a given range of cells and then  add the given number in another range of cells and place the “SUM” in a  separate cell. As seen in the examples below. So, in this case, we are instructing it  to SUM the inputs from L3 thru L8 if K3 thru K8 contains the phrase  “POWER CABLE” and place the SUM in O11 or if it the phrase says “CAN  CABLE” place the SUM in M11. It is important to make sure that the text  criteria or criteria that include math symbols be contained with  quotations “ “. I have learned that excel can be a great  tool to make our jobs simpler and more productive and I have also found  it to be very user friendly, in fact, what I have learned about excel up  to this point has been through the use of Google where there is a bunch  of great how To’s and this is a tool I use almost daily from the  simplest of tasks, counting the characters in a part name as we are  restricted to forty where I work, to organizing wide branching projects I  am working on. That being said, I look forward to learning more about  the tool in this class. REFERENCES: CFI Team, (2022) SUMIF Function - Formula, Examples, How to Use SumIf in Excel (corporatefinanceinstitute.com)

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  The  CONCATENATE function is a text function allows you to merge text from  mu

 
The  CONCATENATE function is a text function allows you to merge text from  multiple cells into a single cell.   This function is not limited to  only joining cell texts/values you can also add an additional text or  string as well.  There are several ways you can perform this function:
You can select the function icon and select CONCATENATE and the  function arguments box opens up.  Then in Text1 you select your first  cell and in Text2 you can select your second cell.  If you’d like to  have a space between the texts, you’d just add a space in Text2 and add  your second cell information in Text3.  Finally, click OK and excel will  combined the text in your new cell.
A shorter way is in the cell you want the text to be combined type in an equal sign, 1st cell name, &, and then your second cell name. Hit tab and it’s done.  Example: =A1&B1
Excel examples:
This function can be useful for teachers that managed their  gradebooks in excel.  Making it easier for them to combine texts in  multiple cells. 
References:
Gupta, Aryan (2023, July 19). How to use Concatenate in Excel (with Syntax and Examples). Retrieved from https://www.simplilearn.com/tutorials/excel-tutorial/concatenate-in-excel

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Electrical Engineering homework help

  For  this week’s discussion, I chose to cover the COUNTIF function in excel.  

 
For  this week’s discussion, I chose to cover the COUNTIF function in excel.  COUNTIF allows a user to automatically count particular criteria in the  desired range of cells (Microsoft, 2022). For example, I made a  worksheet with customer IDs and how much the customer has paid.  So, if I  wanted to see how many customers paid over $200 for instance, COUNTIF  would allow me to do so without having to go through and count each cell  myself.
the function for this example would  look like this =COUNTIF(B2:B200,”>199″). B1:B200 is the range of  cells I’d like to investigate, and “>199” is the “values 200 and  over” criteria I selected.
Additionally, If I wanted to make it a  bit easier to identify the customers that paid over $200, I could set a  New Rule under Conditional Formatting. For this new rule, I would  select the A column and it highlights any ID that has a paid value over  200 using the COUNTIF function (Spahic, 2021).
So, the COUNTIF function has helped me  identify how many customers paid over a certain value, as well as  helped me highlight the customer ID.
REFERENCES
Microsoft. (2022, April 19). COUNTIF function.  Retrieved from support.microsoft.com:  https://support.microsoft.com/en-us/office/countif-function-e0de10c6-f885-4e71-abb4-1f464816df34
Spahic, H. (2021, September 13). How to Use Countif with Conditional Formatting in Excel. Retrieved from excel.officetuts.net: https://excel.officetuts.net/examples/countif-in-conditional-formatting/

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Electrical Engineering homework help

Create an Excel file that calculates the circuit parameters for a series circuit

Create an Excel file that calculates the circuit parameters for a series circuit. The worksheet should look as shown below. 
 Cell B6 should calculate I×R
Cell G6 should calculate V÷R
Cell L6 should calculate V÷I
Cell P6 should calculate V×I 
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