Question 149Electricity/Electronics - 1st Asst/Chief70% to pass
What would be the resistance tolerance of a carbon resistor which is color coded as red, violet, brown, and silver in bands 1 thru 4 respectfully as shown in figure "A" of the illustration? Illustration EL-0103
AI Explanation
The correct answer is C) 10%.
The color coding of the resistor bands indicates the resistance value and tolerance:
- Red, violet, brown: The first three bands indicate the resistance value, which is 27,000 ohms (2,700 x 10^2).
- Silver: The fourth band indicates the tolerance, which is 10%.
The other answer choices are incorrect because:
A) 1% is too tight of a tolerance for a standard carbon resistor.
B) 5% is also a common tolerance, but not the one indicated by the silver band.
D) 20% is too wide of a tolerance for this type of resistor.
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