The document provides information about color codes for resistors, using Ohm's law to calculate current, and includes images of series and parallel circuits on a breadboard. Specifically: 1) It explains that 4-band resistors use the first two bands for the first two value digits and the third band indicates zeros, while the last band specifies the tolerance. 2) It shows an example Ohm's law calculation to find current (I) in a circuit with 5V and 220Ω resistance, calculating 0.023A or 23mA. 3) It lists the color bands - red, red, brown, gold - of a 220Ω resistor chosen for a circuit, identifying the digits and 5

1. Getting to
know your
tools.

2. Color codes
• Each resistor has either 4 or 5 bands. In the 4
band type, the first two bands indicate the
first two digits of the value while the third one
indicates the number of zeros that follow, the
last band specifies the tolerance: in the
example below gold indicates that the resistor
value can be 10k ohm or minus 5%

3. Write out an example calculation to
find the # of Amps of your circuit
(use Ohm's law)
When I was making my circuit, the circuit
supplied 5 volts the resistor supplied 220 ohms
of resistance. To find the number of amps of
your circuit you will need to divide 220 by 5
which will give you .023. This will give you
23miliamps.

4. Show me the colour code for
your chosen resistor.
• The resistor that I have chosen for my circuit
has 4 bands the colour code is red, red,
brown, and gold. The first bands digit is 2 the
second digit is also 2 the third digit which is
also a multiplier is one which makes 220 the
last band is called tolerance which is 5%

5. Capture images for both the series and
the parallel circuits on your breadboard

6. LED

7. Switch

8. 220 OHM Resistor