If an 8-bit digital to analog converter (DAC) produces an analog output voltage with a range of 10 volts (0-9 volts), what is the smallest incremental step in voltage that can be generated at the output?

Correct Answer: Option B — 0.04 volts

An 8-bit digital-to-analog converter utilizes 2 to the 8th power, yielding 256 discrete binary steps. Dividing the 10-volt operating span by 255 effective transition intervals yields an incremental step resolution of approximately 0.04 volts per bit.