Sum
Solve the following problem.
Find the value of resistance for the following colour code.
Red Red Orange Gold
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Solution
Given: Red - Red - Orange - Gold
To find: Value of resistance
Formula: Value of resistance
= (xy × 10z ± T%) Ω
Calculation:
| Colour | Red (x) |
Red (y) |
Orange (z) |
Gold T% |
| Code | 2 | 2 | 3 | ±5 |
From formula,
Value of resistance = (22 × 103 ± 5%) Ω
Value of resistance = 22 kΩ ± 5%
Concept: Resistors
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