The no-load voltage in the voltage-divider circuit shown in the figure is 8 V . The smallest load resistor that is ever connected to the divider is 3.5 k? When the divider is loaded, vo is not to drop below 7.5 V . (Figure 1)

a. Design the divider circuit to meet the specifications just mentioned. Specify the numerical values of R1 and R2.

b. Assume the power ratings of the commercially available resistors are 1/16, 1/8, 1/4, 1, and 2 W. What power rating would you specify?

 

 

R1 R Vo 40 V R2 +