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Question

A resistor is marked with colours red, red, orange and gold. Write the value of its resistance.

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Solution

First band represents the first significant figure of resistor value.
Second band represents the second significant figure of resistor value.
Third band represents the decimal multiplier after the first-two significant figures of resistor value.
Fourth band represents the tolerance of resistor.
According to colour code : red (2) orange (3) gold (5 %).
Thus resistance value is 22×103±5% Ω.

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