Thevenin problem

Question

Answer 1

Step 1 :

Redraw the circuit with equivalent thevenins voltage and resistance.

(From the results of http://www.mathskey.com/question2answer/31696/thevenin-problem &
http://www.mathskey.com/question2answer/31695/thevenin-problem).

Observe the diagram.

The resistors are connected in seies.

Thevenin's voltage is .

Circuit current is  .

Substitute corresponding values in the above equation.

Step 2 :

Maximum power will be transferred when source resistance and  thevenin's resistances are equal.

Maximum power dissipated is .

Substitute and in the above equation.

Maximum power dissipated is .

Solution :

Maximum power dissipated is .