A 5-band resistor has bands Brown, Black, Black, Red, Gold. What is its resistance and tolerance?

A 5-band resistor has bands Brown, Black, Black, Red, Gold. What is its resistance and tolerance?

• A. 1 kΩ ±5%
• B. 100 Ω ±5%
• C. 1 MΩ ±5%
• D. 10 kΩ ±5%

Answer: (D)

Reading a 5-band resistor involves three significant digits, a multiplier, and a tolerance. Brown, Black, Black give 1-0-0, so the digits are 100. The multiplier band is red, which represents 10^2 (100), so 100 × 100 = 10,000 ohms. The final band is gold, meaning a tolerance of ±5%. So the resistor is 10 kΩ with ±5% tolerance.

Reading a 5-band resistor involves three significant digits, a multiplier, and a tolerance. Brown, Black, Black give 1-0-0, so the digits are 100. The multiplier band is red, which represents 10^2 (100), so 100 × 100 = 10,000 ohms. The final band is gold, meaning a tolerance of ±5%. So the resistor is 10 kΩ with ±5% tolerance.