Resistors Color Code

How many color bands are typically found on a resistor?

• 4 or 5

• 2 or 3

• 8 or 9

• 6 or 7

What is the purpose of the color code on resistors?

• To control the flow of electricity

• To adjust the brightness of LEDs

• To indicate resistance value and tolerance

• To indicate the manufacturing date

If a resistor has the color bands: red, red, brown, gold, what is its resistance value?

• 220 ohms with a tolerance of ±5%

• 220 ohms with a tolerance of ±10%

• 200 ohms with a tolerance of ±5%

• 240 ohms with a tolerance of ±5%

A resistor has the color bands: yellow, violet, orange, silver. What is its resistance value?

• 39 kOhms

• 74 kOhms

• 50 kOhms

• 47 kOhms

Explain how to read the resistance value of a resistor using the color code.

• Refer to the resistor's datasheet for the resistance value

• Identify the color bands on the resistor, match each color to its corresponding number from the color code chart, then use the significant digits, multiplier, and tolerance to calculate the resistance value.

• Use a multimeter to measure the resistance directly

• Count the number of color bands on the resistor

Why is it important to understand the color code of resistors in electronics?

• It allows the resistor to emit light.

• It helps in determining the weight of the resistor.

• It helps in determining the resistance value of the resistor.

• It indicates the temperature at which the resistor operates.

What is the minimum value in the tolerance range of a resistor with color code Brown-Red-Brown?

• 108 Ω

• 144 Ω

• 116 Ω

• 96 Ω

What is the multiplier for color Green?

• x10,000

• x1,000,000

• x100,000

• x1,000

A 47 Kohm resistor would have which colours on its first three bands?

• yellow, violet, white

• red, white, blue

• yellow, violet, orange

• orange, yellow, violet

Which digit does the color orange denote on a resistor color band?

• 1

• 9

• 3

• 6