Resistance in series and parallel Circuit

Resistance in Series and Parallel Circuit

1. In a series circuit, the effective resistance is equal to the sum of the individual resistance, as shown in the following equation.
   
   
   
2. In a parallel circuit, the effective resistance of the resistors can be calculated fro the following equation.
   
   

   

Example:

Find the equivalent resistance of the connection shown in the diagram above
Answer:
(a)

(b)

(c)

(d)