Cara Menghitung Nilai Resistor 4 Gelang Warna | Tutorial Mudah Membaca Kode Warna Resistor

Summary

In this video tutorial on electronics, the focus is on calculating the value of resistors with four color bands. The presenter explains how different color codes represent specific numbers and powers of 10, which together help determine a resistor's resistance value. The tutorial covers key concepts such as interpreting the first two color bands for the main resistance value, the third band for the power of ten multiplier, and the fourth band for tolerance. Through examples, viewers learn how to calculate resistance values and understand the significance of each color band. The video also touches on future lessons about resistors with five color bands.

Takeaways

• 😀 Resistor values are often represented using a color code system known as the color bands or rings on resistors.
• 😀 Understanding the sequence of color codes is essential for determining the resistor's resistance value.
• 😀 The color code system is used for resistors with varying resistance values, ranging from less than 1 Ohm to thousands of Ohms.
• 😀 The resistor’s color bands include the first two bands representing the main resistance value, the third indicating a power of 10 multiplier, and the fourth representing tolerance.
• 😀 The spacing between the third and fourth color bands on a resistor is wider to clearly distinguish them.
• 😀 To calculate the resistor's value, memorize the color-to-number chart for the resistor color codes.
• 😀 The first two color bands indicate the first two digits of the resistor's value, while the third band indicates the multiplication factor (10^n).
• 😀 The fourth color band indicates the resistor's tolerance percentage, which reflects the acceptable deviation from the stated resistance.
• 😀 An example calculation: A resistor with yellow, violet, orange, and gold bands has a resistance of 47,000 Ohms (47 kOhm) with a 5% tolerance.
• 😀 Another example: For a resistor with a value of 1500 Ohms, the color bands are brown, green, red, and gold, representing 1500 Ohms with a 5% tolerance.

Q & A

What is the primary purpose of using color bands on resistors?

Color bands on resistors are used to represent the resistor's resistance value, tolerance, and power rating. The colors help identify the resistance in Ohms and the allowable tolerance of the resistor.

How many color bands are used in the resistor discussed in the tutorial?

The resistor discussed in the tutorial uses four color bands, which represent the resistance value, multiplier, and tolerance.

What do the first two color bands on a four-band resistor represent?

The first two color bands represent the significant digits of the resistor's resistance value.

What is the role of the third color band on a four-band resistor?

The third color band represents the multiplier, which indicates the power of ten by which the first two digits should be multiplied.

What does the fourth color band on a resistor signify?

The fourth color band indicates the tolerance of the resistor, showing how much the actual resistance value can vary from the nominal value.

What is the significance of the color gold on a resistor?

The gold color on the fourth band of a resistor represents a tolerance of ±5%, meaning the actual resistance can vary by 5% above or below the nominal value.

How is a resistor with the colors yellow, purple, orange, and gold calculated?

The calculation starts with yellow (4) and purple (7), giving the value 47. The third color, orange, represents a multiplier of 10^3, so the final value is 47,000 Ohms or 47 kOhms with a tolerance of ±5% indicated by the gold band.

If a resistor has a value of 1500 Ohms, what are the color bands?

For a resistor with a value of 1500 Ohms, the first two bands would be brown (1) and green (5), the third band would be red (representing 10^2), and the fourth band would be gold, indicating a tolerance of ±5%.

What is the key to quickly calculating resistor values from color bands?

The key to quickly calculating resistor values is to memorize or familiarize oneself with the color code chart, which links each color to a specific number and multiplier.

What is the next topic to be discussed in the following video as mentioned in the tutorial?

The next topic to be discussed in the following video is how to calculate the values of resistors with five color bands.