Unit 4 - Electrical & Electronic principles

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Past papers and workbooks

Basic DC circuit theory (LO1)

DC circuits

Using Ohm's Law

DC Circuits

Total resistance and current

KCL and KVL

Solving Kirchhoff loop questions

LO1 DC circuits

Revision Material

AC circuit theory (LO2)

AC sinusoids

Using the Vmax equation

Series AC circuits

Phasor diagrams

Series RC circuits

Practice questions

Series RL circuits

Practice questions

Series RLC circuits

Practice questions

Workbook - Walk-through

AC circuits - answers

LO2 Series AC circuits

Revision materials

Motors and Generators (LO3)

Motors and Generators

Lesson slides and practice questions

Revision mat

Motors, Generators and DC starters

AC and DC supplies (LO4)

AC voltage generation

Single phase AC

AC voltage generation

3-phase AC

AC wave rectification

Rectification using diodes

AC wave rectification

Answers to questions

AC wave rectification

Rectification with diodes

Voltage regulation

Diodes and zener diodes

LO4 Power Supplies

Revision material

Operational Amplifiers (LO5)

Op-Amp answers

Answers to basic questions

Workbook walk-through

Answers to Op-Amp questions

LO5 Operation Amplifiers

Revision Material

Digital Electronics (LO6)

Counting in binary

The basics

Logic gates

Logic gates and truth tables

Combinational logic

Creating Boolean expressions

Flip-Flops

D-type and T-type timing diagrams

Workbook walk-through

Answers to digital electronics questions

LO6 Digital electronics

Revision material