The order of coloured rings in a carbon resistor is red, yellow, blue and silver. What is the resistance of the carbon resistor?
Answer & explanation
Correct answer: option 3
According to colour code of carbon resistors, red stands for 2, yellow for 4, blue for 6 and silver stands for 5%. First and second band represents the first two significant figure of resistance.Third band represents the power raised to 10 in the value of resistance. Fourth band represents the tolerance.