Understanding Resistor Color Codes

What do the colors on a resistor represent?

• The colors indicate the resistor's resistance value and tolerance.

• The colors indicate the resistor's power rating.

• The colors show the maximum voltage the resistor can handle.

• The colors represent the manufacturing date of the resistor.

How many colors are typically used in a 4-band resistor?

• 3

• 5

• 2

• 4

What is the value of the color red in the resistor color code?

• 2

• 1

• 3

• 4

If a resistor has the colors brown, black, and red, what is its value?

• 100 ohms

• 1000 ohms

• 10,000 ohms

• 1 ohm

What does the gold band on a resistor indicate?

• Power rating of 1 watt

• Temperature coefficient of 100 ppm/°C

• Tolerance of ±5%

• Resistance value of 100 ohms

How do you calculate the tolerance of a resistor?

• Subtract the tolerance percentage from the resistance value.

• Identify the color bands; calculate tolerance using the formula: Tolerance = Resistance Value * Tolerance Percentage.

• Use the resistor's wattage rating to determine tolerance.

• Measure resistance with a multimeter; no calculation needed.

What is the significance of the first two color bands on a resistor?

• The first two color bands are used to identify the manufacturer of the resistor.

• The first two color bands indicate the resistor's tolerance level.

• The first two color bands represent the temperature coefficient of the resistor.

• The first two color bands represent the first and second significant digits of the resistor's value.

If a resistor has the color bands yellow, violet, and orange, what is its resistance?

• 4700 ohms

• 47 ohms

• 470000 ohms

• 47000 ohms or 47 kΩ

What color represents the number 5 in the resistor color code?

• green

• blue

• yellow

• red

How do you determine the multiplier from the color bands?

• The multiplier is determined by the color of the third band.

• The multiplier is determined by the color of the fourth band.

• The multiplier is determined by the color of the second band.

• The multiplier is determined by the color of the first band.