Other
Edexcel A-level Electricity Introduction Summary notes
- Module
- Electricity
- Institution
- PEARSON (PEARSON)
These notes include Formulas, Definitions & Graphs required for the Electricity topic for A-level Edexcel Physics
[Show more]Preview 1 out of 3 pages
Add to cartSome examples from this set of practice questions
1.
What is the definition for the electromotive force (emf)?
Answer: The energy per unit charge converted into electrical energy by the supplied source (battery)
2.
What is the definition for potential difference?
Answer: The difference in electrical energy per unit charge between 2 points in a circuit
3.
How can you determine the emf & internal resistance of a cell?
Answer: - Vary current using a variable resistor - Record corresponding values for current and potential difference - Graph potential difference against current - negative gradient = internal resistance - y-intercept = emf y = mx +c V = -rI + E
4.
State the resistance of a diode when the potential difference is below zero
Answer: Resistance is infinite
5.
What is meant by drift velocity?
Answer: mean velocity of charge carriers
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
You can quickly pay through credit card for the summaries. There is no membership needed.
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!
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
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.
Stuvia is a marketplace, so you are not buying this document from us, but from seller tanikapanchani. Stuvia facilitates payment to the seller.
No, you only buy these notes for £4.49. You're not tied to anything after your purchase.
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 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