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

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Multiple Choice

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

This question tests how to read a resistor color code where the first two bands are the digits and the third band is the multiplier. Yellow represents 4 and violet represents 7, so the first two bands give 47. The multiplier orange corresponds to 10^3, so the value is 47 × 10^3 ohms = 47,000 ohms, i.e., 47 kΩ. Therefore the first three bands are yellow, violet, orange. Other color combinations would yield different values (for example, red-white-blue would be 29 × 10^6 Ω, yellow-violet-white would be 47 × 10^9 Ω, orange-yellow-violet would be 34 × 10^7 Ω), none of which match 47 kΩ.

This question tests how to read a resistor color code where the first two bands are the digits and the third band is the multiplier. Yellow represents 4 and violet represents 7, so the first two bands give 47. The multiplier orange corresponds to 10^3, so the value is 47 × 10^3 ohms = 47,000 ohms, i.e., 47 kΩ. Therefore the first three bands are yellow, violet, orange. Other color combinations would yield different values (for example, red-white-blue would be 29 × 10^6 Ω, yellow-violet-white would be 47 × 10^9 Ω, orange-yellow-violet would be 34 × 10^7 Ω), none of which match 47 kΩ.

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