# A Level Physics - An Overview on Current of Electricity and DC Circuits

Almost all the essential concepts for A Level Physics Electrical topics can be found in this video. These concepts can be drawn in a form of cheat sheet or mindmap as I have demonstrated in the video. Doing so can help students to remember better.

Concepts covered in the video:

Definition of Current

Formula of current including its form in calculus

Definition of potential difference and emf (electromotive force)

Formula of potential difference and emf

Difference between potential difference and emf

Batteries with internal resistance

Terminal Potential Difference and related graphs

Definition of resistance

Effective resistance of resistors in series and parallel circuits

Potential Divider Rule formula

How to apply potential divider rule

Ohm's Law

Ohmic and non-ohmic conductors

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