P 3.3-12 Consider the voltage divider shown in Figure P 3.3-12 when R1 = 8 Ω. It is desired that the output power absorbed by R1 be 4.5 W. Find the voltage vo and the required source vs.

 

 

Figure P 3.3-12.

 

Power can be written as

Solve for v0

 

 

Now use voltage division to find vs

 

 

Now solve for vs

 

 

 

 

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This page last updated on January 17, 2019