ALL of A Level Electricity in 1 hour

Last Minute Physics Sessions: https://zphysicslessons.net/physics-tutoring Get Extra Physics Help: https://www.youtube.com/channel/UC3L5MO3gJTlB09wmmHGW5Qg/join We cover the whole of A level Electricity for all exam boards including AQA, OCR A and B, Edexcel, Eduqas and WJEC and also applicable to CIE, Edexcel International and many others. Chapters: 00:00 Electric Current 00:49 Current Example Problem 01:19 Base Unit of Charge 01:47 Potential Difference 02:18 Potential Difference Example Problem 02:41 SI Base Unit of the Volt 04:06 Resistance 05:02 Ideal Voltmeter and Ammeters 05:23 Resistance example problem 06:26 Ohm's Law 07:43 Ohm's Law VI Graph 08:21 Ohm's Law IV Graph 08:37 IV Characteristics - Resistor 09:15 IV Characteristics - Filament Lamp 10:08 IV Characteristics - Thermistor 11:02 IV Characteristics - Diode 12:08 Resistivity 13:22 Resistivity Example Problem 15:47 Resistivity Example Problem 2 17:00 Superconductors 17:56 Resistivity Practical 20:31 Resistors in Series and Parallel 21:09 Derivation of Resistors in Series 21:47 Derivation of Resistors in Parallel 23:08 Energy and Power Equations 24:32 Kirchoff's Laws 26:59 Circuit Example Problem 28:26 Sum of Currents Example Problem 29:27 Current Drawn from a cell Example Problem 31:57 P.d. Between Parallel Branches 34:27 Condition for 0 V between parallel Branches 37:02 Parallel Branches P.d. Example 38:34 Cells in Series and Parallel 39:48 Potential Dividers 41:20 Potential Divider Equation Example 41:48 Potential Divider Resistors Equation 42:48 Thermistors and LDRs 43:40 Potential Divider Explain Example 46:08 EMF and Potential Difference 47:28 State what is meant by emf 48:05 Internal Resistance 49:13 Internal Resistance Equations 50:06 How to Measure EMF 50:38 Internal Resistance Experiment 52:19 Internal Resistance Example Problem 1 54:33 Internal Resistance Explain Problem 56:01 Internal Resistance Cells in Parallel 58:05 Number Density - not AQA, all others 59:52 Drift Velocity - not AQA, all others 01:00:59 Derivation of Drift Velocity Equation