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A resistor with colour bands: red-red-red-gold, has the value:
- a)22k 5%
- b)2k2 5%
- c)220R 5%
- d)22R 5%
Correct answer is option 'B'. Can you explain this answer?
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A resistor with colour bands: red-red-red-gold, has the value:a)22k 5%...
Standard EIA Decade Values Table - decade 1 to 10 kΩ The 4 color band resistor color code red-red-red-gold stands for 2.2 kΩ +/-5%, in words: two point two Kiloohms with plus/minus five percent tolerance.
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A resistor with colour bands: red-red-red-gold, has the value:a)22k 5%...
Resistor Color Coding:
Resistor color coding is a system of marking the values of resistors with a set of colored bands. The first two bands indicate the significant digits, the third band indicates the multiplier, and the fourth band indicates the tolerance.
Color Codes:
Red - 2
Gold - 0.1 (multiplier)
Red - 2
Gold - 5% (tolerance)
Calculation:
Using the color code, we can determine the value of the resistor as follows:
Significant digits: 2 2
Multiplier: 0.1
Value = 2 2 x 0.1 = 2.2 kΩ
Tolerance: ±5%
Therefore, the correct answer is option B) 2k2 5%.
Resistor color coding is a system of marking the values of resistors with a set of colored bands. The first two bands indicate the significant digits, the third band indicates the multiplier, and the fourth band indicates the tolerance.
Color Codes:
Red - 2
Gold - 0.1 (multiplier)
Red - 2
Gold - 5% (tolerance)
Calculation:
Using the color code, we can determine the value of the resistor as follows:
Significant digits: 2 2
Multiplier: 0.1
Value = 2 2 x 0.1 = 2.2 kΩ
Tolerance: ±5%
Therefore, the correct answer is option B) 2k2 5%.
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