# Basic Electronics

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## An introduction to electronics to help you make the most from your Arduino or other prototyping platform.

Last updated 2022-01-10 | 4.5

- Understand the concepts of voltage
- resistance and current
- Use Ohm's Law to calculate voltage
- current and resistance
- Use Kirchhoff's Laws to calculate voltage and current

## What you'll learn

Understand the concepts of voltage
resistance and current
Use Ohm's Law to calculate voltage
current and resistance
Use Kirchhoff's Laws to calculate voltage and current
Understand the meaning of and calculate energy and power
Use resistors in various configurations
like in voltage dividers and voltage ladders
Read the value of a resistor from its package
Use pull-up and pull-down resistors
Understand the use of capacitors
Use capacitors as energy stores and filters
Calculate the RC time constant of a capacitor
Understand diodes
Measure the voltage drop of a diode
Understand how to use rectifier and zener diodes
Protect a circuit from reverse polarity
Understand how to use a transistor to control low and high power loads
Calculate the currents and base resistor for a bipolar transistor
Use the correct voltage regulator for any circuit

## * Requirements

* Small circuits controlled by an Arduino
* A basic understanding of electricity and electronics
* Have assorted resistors
* capacitors
* LEDs
* diodes
* transistors
* voltage regulators (see section 1 for details
* free to view)
* jumper wires and a battery (see section 1 for details
* free to view)
* A multimeter (see section 1 for details
* free to view)
* Basic algebra

## Description

• Understand the concepts of voltage, resistance and current
• Use Ohm's Law to calculate voltage, current and resistance
• Use Kirchhoff's Laws to calculate voltage and current
• Understand the meaning of and calculate energy and power
• Use resistors in various configurations, like in voltage dividers and voltage ladders
• Read the value of a resistor from its package
• Use pull-up and pull-down resistors
• Understand the use of capacitors
• Use capacitors as energy stores and filters
• Calculate the RC time constant of a capacitor
• Understand diodes
• Measure the voltage drop of a diode
• Understand how to use rectifier and zener diodes
• Protect a circuit from reverse polarity
• Understand how to use a transistor to control low and high power loads
• Calculate the currents and base resistor for a bipolar transistor
• Use the correct voltage regulator for any circuit

## Course content

8 sections • 63 lectures

## Starting up 5 lectures

### Parts list Preview 00:05

For a list of parts and tools that I use in this course please see https://techexplorations.com/parts/befam-parts/

## Electronics, basic concepts 11 lectures

### Ohm's Law

The questions in this quiz will test your understanding of Ohm's Law

### Power and energy

These questions will test your understanding of power and energy.

## Resistors 14 lectures

### Resistor power

Can you determine if a given resistor can be safely used under the specified current requirements in the following questions?

### Voltage dividers

These questions will exercise you in calculating voltage divider outputs.

### Voltage dividers, with current draw

Using the 10% rule, calculate the appropriate resistors in the voltage divider for the following problem.

### Current dividers

The questions in this quiz will help you practice solving current divider problems.

## Capacitors 9 lectures

### Capacitors in parallel and series

These questions are about capacitors connected in parallel.

## Diodes 11 lectures

### Calculating the LED protective resistor

These questions will help you practice calculating the correct resistor for an LED.

## Transistors 6 lectures

### Calculating transistor currents

Practice simple transistor circuits with these problems.