Struggling to Teach AS Level Electricity: What Analogies Can Help?

AI Thread Summary
Teaching AS level electricity can be challenging, particularly in conveying the relationships between voltage, current, resistance, and charge. Effective analogies, such as those involving water tanks and pipes, can aid in understanding these concepts. Emphasizing the definitions of key units, like 1 Amp equating to 1 coulomb per second and 1 Volt to 1 Joule per coulomb, is crucial for clarity. Students often struggle with distinguishing between circuit resistance and component resistance, as well as applying the correct equations to problems. Developing these skills requires practice and a focus on deconstructing the concepts involved.
hydey287
Messages
2
Reaction score
0
Hi there, I am currently attempting to teach AS level electiricity but am finding it really hard understanding some of the aspects of it myself, let alone teach the kids it!

They are really struggling with the concepts of voltage, current, resistance and charge, especially how they all link.

Are there any analogies/explanations out there that I can use?
 
Physics news on Phys.org
How about teaching Ohm's Law?
 
For me the most important thing is to 'de-construct' units
Get it clear that 1 Amp means 1 coulomb per second
And the most important of all ! That 1 Volt means 1 Joule per coulomb.
 
Thank you :) I have tried teaching Ohm's Law, unfortunately they find the fact that resistance of the circuit is different from the resistance of a component. They also lack the skill to be able to look at a question and select the appropriate equation, but I guess that that is a skill that comes with practice.
 
What is AS level?
 
Thread 'Inducing EMF Through a Coil: Understanding Flux'
Thank you for reading my post. I can understand why a change in magnetic flux through a conducting surface would induce an emf, but how does this work when inducing an emf through a coil? How does the flux through the empty space between the wires have an effect on the electrons in the wire itself? In the image below is a coil with a magnetic field going through the space between the wires but not necessarily through the wires themselves. Thank you.
Thread 'Griffith, Electrodynamics, 4th Edition, Example 4.8. (Second part)'
I am reading the Griffith, Electrodynamics book, 4th edition, Example 4.8. I want to understand some issues more correctly. It's a little bit difficult to understand now. > Example 4.8. Suppose the entire region below the plane ##z=0## in Fig. 4.28 is filled with uniform linear dielectric material of susceptibility ##\chi_e##. Calculate the force on a point charge ##q## situated a distance ##d## above the origin. In the page 196, in the first paragraph, the author argues as follows ...
Back
Top