Solution Found!
The variable resistor in the circuit in Fig. P4.89 is
Chapter 4, Problem 4.88(choose chapter or problem)
The variable resistor in the circuit in Fig. P4.89 is adjusted for maximum power transfer to R a) Find the numerical value of R b) Find the maximum power delivered to R c) How much power does the 180 V source deliver to the circuit when R is adjusted to the value found in (a)?
Questions & Answers
QUESTION:
The variable resistor in the circuit in Fig. P4.89 is adjusted for maximum power transfer to R a) Find the numerical value of R b) Find the maximum power delivered to R c) How much power does the 180 V source deliver to the circuit when R is adjusted to the value found in (a)?
ANSWER:Step 1 of 10
(a)
Open the resistor and calculate the Thevenin’s equivalent across .
Circuit diagram:
Figure 1.
The current (since the circuit is open).
Apply Kirchhoff’s current law at node voltage ,