Discussion
If the colour bands on a resistor are in the order- brown, violet, orange and golden, then the value of the resistor is ______.
Answer: B
In the colour code of a resistor the first band gives the first digit and the second band the second digit, the third band is the multiplier, and the fourth band is the tolerance. Brown is 1, violet is 7 and orange is a multiplier of 1000, so the value is 17 x 1000 = 17,000 ohms. A gold fourth band means a tolerance of plus or minus 5 percent. So the resistor is 17,000 ohms with plus or minus 5 percent tolerance, option (B). The other values do not match the bands brown, violet and orange.
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