GCE A Level Physics | Using Potentiometers to Identify EMF and Internal Resistance (DC Circuits)

In the GCE A Levels, you will be asked to analyse current-voltage characteristic graphs (or I-V graphs) of various components. This video focuses on how to interpret the I-V graph of a filament lamp, or metals in general, and we will see that the I-V graph shows that the resistance increases as the potential difference across the filament lamp increases. The video will describe why this happens, including balancing the effects of increased thermal lattice vibrations and increased charge carrier concentrations.

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[AlfredJolly-okro]

Bro u just made this so simple that I really understood those formulas how they are related to each other, thanks alot..

[javedfaizal]

I do the Cambridge A Level syllabus but regardless this video was really helpful, thanks!

[HendrickSonfack]

Hi thank you soo much….would it be possible for you to cover capacitors