P 3.8-2 The circuit of Figure P 3.8-2 was assigned as a homework problem. The answer in the back of the textbook says the current, i, is 1.25 A. Verify this answer using current division.

 

Figure P 3.8-2

 

We can consider this circuit to be three resistors in parallel, 2 20 resistors and 1 10 resistor, since the 2 5 resistors are in series.  So then current division gives us:

 

 

 

Answer is verified!

 

Answer is verified!

 

 

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This page last updated on January 21, 2019