7 Resistors 1

A resistor is an electronic component that resists the flow of current.

The colored bands on the resistor encode the resistance of the resistor. The resistor shown in the image above has bands brown, black, red, and gold. You decode the resistance like so:

1. brown = 1
2. black = 0
3. red = add 2 zeros (called the multiplier)
4. gold = \(\pm 5\)% (called the tolerance)

In other words, this resistor has a resistance of \(1000 \Omega \pm 5\)%

An illustrated guide for reading 4-band resistors can be found at https://www.wikihow.com/Read-Axial-Lead-Resistors

7.1 Decoding a resistance

Suppose that you have a resistor with bands:

• green
• blue
• orange
• silver

What is the resistance of the resistor? What is the tolerance of the resistor? Edit the script lab2.m and complete it so that R stores the resistance and tol stores the tolerance in percent.