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Step 6 The last band, silver, represents a tolerance of ±10%. Write this after 22000 Ω to show the
calculated value as 22000 Ω ±10%. Thus, the given resistor value is 22000 Ω.

7805 Voltage Regulator IC (Integrated Circuit)

The 7805 voltage regulator IC is a three-terminal device that provides a
constant output voltage of +5 volts.

The first two digits “78” indicate that it is a positive voltage regulator, and Vcc Out
“05” indicates that the output voltage is +5 volts.
Gnd
Connecting Wires

Connecting wires are like electrical roads that let electricity travel
between parts of a circuit.

They’re usually made of a metal like copper, which lets electricity
pass through easily.
When you connect them correctly, they create a path for electricity to move through.

Battery

A battery is similar to a compact power bank that stores and releases energy to power
devices when connected to it.

Battery Cap
GND Vcc
A battery cap is like a cover that goes on top of a battery to protect
it and make it easier to connect wires.

It has two parts: a positive and a negative terminal, which matches
the terminals on the battery.
When you put the battery into the cap, the terminals touch the battery’s terminals, allowing
electricity to flow.

21 st #Technology Literacy
Century
Activity Glow Your LED Using Breadboard Skills #Information Literacy

Overview

In this activity, students will explore the basics of electronics by creating a simple circuit to make
an LED glow using a breadboard. They will discover how breadboards work and learn to identify and
connect basic electronic components such as resistors, connecting wires, and LED.

Hands-On Electronics with Breadboard-Based Kit 15