100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary AQA AS/A Level Physics A* Revision Notes: Capacitors 1. £4.26   Add to cart
Quickly navigate to
Preview
  2.  
  3. AQA
  4.  
  5. Physics
  6.  
  7. Unit 4 PHYA4 - Fields and Further Mechanics (7408)

Summary

Summary AQA AS/A Level Physics A* Revision Notes: Capacitors 1.

 7 views  0 purchase
  • Institution
  • AQA

Achieve an A* in your A Level Physics exams with our expertly written notes on 'Capacitors'. Created by a student who scored an A*, these notes are clear and easy to understand. Learn about the principles of capacitance, how capacitors store energy, and their applications in circuits. With straight...

[Show more]

Preview 2 out of 11  pages

Document information

  • July 27, 2024
  • 11
  • 2023/2024
  • Summary

Subjects

  • capacitors
  • electric fields
  • aqa alevel physics revision notes
  • aqa a level physics capacitors exam questions
  • aqa capacitors revision notes
  • a level physics capacitors
  • aqa a level physics electric fields

Written for

All documents for this subject (27)

Seller

avatar-seller
stravia54

Content preview

Capacitors ch.7

Capacitance def.?
- the capacitance of 1 farad (F) is 1 coulomb of charge is stored for a p.d. of 1 V between
the plates
Type of electric field formed between the plates of a capacitor?
- uniform
How to increase the charge stored on plates?
- insert dielectric in between plates
→ these are electrically insulating materials, but a good supporters of electrostatic fields
Examples of dielectric materials?
- polyethylene
- waxed paper
Describe the dielectric action (i.e. what happens when a dielectric is inserted between
the two plates)?
- each molecule of the dielectric becomes polarised ← the electrons in the molecules are
slightly pulled towards the positive plate ⇒ opposite ends are slightly negative and positive
relative to each other




→ dielectric increases charge stored for any given p.d. ⇒
increases
Permittivity def. and symbol?
- a property of dielectrics
- the measure of the ability to store an electric field in a material

, Relative permittivity def.?




Describe the action of a simple polar molecule that rotates in the presence of an
electric field (in an AC circuit)?




→ only focus on electronic polarisation
Relative permittivity synonym?
- dielectric constant
Factors affecting capacitance?

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller stravia54. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £4.26. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75619 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£4.26
  • (0)
  Add to cart