A resistor's first three colour bands are red, yellow and black. What is its value?

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Multiple Choice

A resistor's first three colour bands are red, yellow and black. What is its value?

In a three-band resistor, the first two bands are the digits of the value, and the third band is the multiplier (the power of ten). Red represents 2, and yellow represents 4, so the digits are 24. The multiplier color black means ×1 (10^0). So the resistance is 24 × 1 = 24 ohms. The other options would require different digits or a different multiplier (for example, a brown multiplier would give 240 ohms, not 24).

In a three-band resistor, the first two bands are the digits of the value, and the third band is the multiplier (the power of ten). Red represents 2, and yellow represents 4, so the digits are 24. The multiplier color black means ×1 (10^0). So the resistance is 24 × 1 = 24 ohms. The other options would require different digits or a different multiplier (for example, a brown multiplier would give 240 ohms, not 24).

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