100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached 4.2 TrustPilot
logo-home
Essay

BTEC Applied Science Unit 15 Assignment 3 DISTINCTION GRADE

Rating
3.0
(1)
Sold
2
Pages
14
Grade
A
Uploaded on
20-11-2022
Written in
2021/2022

This is the third assignment required for unit 15 Electrical Circuits BTEC applied science. This assignment was awarded a distinction grade and it covers all the key aspects of the specification. Please do not copy use as a guide only, good luck!

Show more Read less








Whoops! We can’t load your doc right now. Try again or contact support.

Document information

Uploaded on
November 20, 2022
Number of pages
14
Written in
2021/2022
Type
Essay
Professor(s)
Unknown
Grade
A

Content preview

Section 1 Commons.wikimedia.or
A cell is composed of one single power source. g. 2022. File: A Cell and
a Battery symbol’s -
A battery is composed of multiple connections of cells that Wikimedia Commons.
are arranged in series. [online] Available at:
They are categorised into primary which are non- https://commons.wikim
rechargeable such as regular batteries in toys or watches edia.org/wiki/File:A_Cel
and secondary cells which are rechargeable meaning that l_and_a_Battery_symbo
chemical produced to provide the electricity can be reversed. Secondary cells can l.svg [Accessed 3 March
be found in phones or laptops. 2022].

Primary non rechargeable cells can be made of zinc-carbon which are standard cells but have short
life, so they needs to be replaced or alkaline cells which have a longer life.




Secondary rechargeable cells are made of lithium ion which are made from simple lithium, but the
Andrew R. 2022, primary and
ions are the parts that provides electricity.
secondary cells. Accessed: 01/03/22
Secondary rechargeable cells can also be made of lead-acid which
are often used as batteries for cars because it turns a lower input voltage to a higher output voltage.

Advantages of primary cells include that they are cheaper to buy compared to secondary cells which
are more expensive. Also has a higher voltage where the secondary cells only has the voltage that
stays constant. However, a disadvantage of primary cells is that it is economical to use because it
requires lots of energy to put in compared to what energy is given out, secondary cells are
nonstandard and so they are non-transferrable.

Torchspot.com. 2022. Flashlight
Batteries Explained. [image]
Available at:
https://www.torchspot.com/ulti
mate-guide-flashlight-batteries/
[Accessed 8 March 2022].


Lithium primary cells have a longer life, so they last for a longer period of time than secondary
alkaline cells that has a small capacity or larger capacity. This is because the Li primary cells provide a
voltage that it is more consistent which alkaline cells cannot do.




Direct current:

Reviews from verified buyers

Showing all reviews
2 year ago

3.0

1 reviews

5
0
4
0
3
1
2
0
1
0
Trustworthy reviews on Stuvia

All reviews are made by real Stuvia users after verified purchases.

Get to know the seller

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
oanaandrada Gateway College
View profile
Follow You need to be logged in order to follow users or courses
Sold
121
Member since
3 year
Number of followers
93
Documents
27
Last sold
1 week ago

4.0

33 reviews

5
16
4
6
3
8
2
1
1
2

Recently viewed by you

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their exams and reviewed by others who've used these revision notes.

Didn't get what you expected? Choose another document

No problem! You can straightaway pick a different document that better suits what you're after.

Pay as you like, start learning straight away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and smashed it. It really can be that simple.”

Alisha Student

Frequently asked questions