If a resistor that is color-coded red-red-brown-silver is connected to a 15 V source, what is the maximum current that can flow?

Question

If a resistor that is color-coded red-red-brown-silver is connected to a  15 V  source, what is the maximum current that can flow?

Quizplus · Accepted Answer

The first two bands (red-red) indicate the first two digits of the resistance value, which is 22. The third band (brown) indicates the multiplier, which is 10. The fourth band (silver) indicates the tolerance, which is 10%. Therefore, the resistance value is 220 ohms with a tolerance of 10%. The maximum current that can flow through a resistor is given by Ohm's law: I = V/R. Therefore, the maximum current that can flow through this resistor is 15 V / 220 ohms = 0.0682 A = 68.2 mA.

If a Resistor That Is Color-Coded Red-Red-Brown-Silver Is Connected to a