Problem:

Derive the equation for total resistance of this circuit.

Procedure:

1. Combine the parallel-connect resistors, R2 and R3.

R2,3 = R2 || R3

 

2. Include the series-connected resistor, R1

RT = R1 + R2,3

 

3 Finalize the equation

. RT = R1 + (R2 || R3)

 
Solution

The total resistance of this circuit is given by

. RT = R1 + (R2 || R3)

 

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