Answer
See answers.
Work Step by Step
a. A 4-bit number can represent values from 0 to 15, or 16 values. The maximum number is represented by 5.0 volts, so each step represents $5.0V/15 = \frac{1}{3}V$. The binary number 1011 = 1+2+8 = 11 in base 10 (decimal). The voltage is $(11)( \frac{1}{3}V)=3\frac{2}{3}V$.
b. 2.0 volts is 6 units of $\frac{1}{3}V$ each. The binary representation of 6 is 2+4 = 0110, which is the 4-bit representation for 2.0 volts.
