How would we calculate the Thevenin's resistance for the above circuit? The right answer for this circuit is 1.5 kOhm.
$$R_{567} = R_7 + (R_5 \parallel R_6) = .5 + .67 = 1.2 k\Omega$$
$$R_{34567} = R_3 + (R_4 \parallel R_{567}) = 1 + .75 = 1.75 k\Omega$$
$$R_{TH} = R_1 + (R_2 \parallel...
Homework Statement
FIGURE 1 shows a 50 Ω load being fed from two voltage sources via
their associated reactances. Determine the current i flowing in the load by:
(a) applying Thévenin’s theorem
(b) applying the superposition theorem
(c) by transforming the two voltage sources and their...
Homework Statement
Find the Thevenin equivalent at terminals a-b
V1 = 70V
V2 (dependent) = 4Vo
R1 = 10Kohm
R2 = 20Kohm
Homework Equations
##V=RI##
##1/req = 1/r1 + 1/r2 + ... +1/rn##
The Attempt at a Solution
Found the current i = 1mA by KVL using Vo = 10ki then did source...
Homework Statement 1. Homework Statement [/B]
https://ibb.co/b263Pw
Homework Equations
[/B]
Use thevenin method to find the intensity between A and B
The Attempt at a Solution
Well I tried a easier method but I just cant find the same answer[/B]
Hey guys, I am supposed to solve for voltage and current on R4 using Thevenin's theorem here. Values are following:
U = 100V
R1 = 310
R2 = 610
R3 = 220
R4 = 570
R5 = 200
Now, I know I need to solve for Rth and Vth, so I put the circuit into simulation and figured out voltage on R3 is equal to...
Homework Statement
[/B]
All voltages and impedances are in per unit values.
After all the source transformations, why is the voltage source still 1 ?
Homework Equations
The Attempt at a Solution
[/B]
Homework Statement
Homework Equations
Node Voltage Method
V=IR
The Attempt at a Solution
KCL at Node 1:
KCL at Node 2:
i is the current moving towards "a"
I've simplified the two equations down but the problem I run into is that normally I'm able to write a third equation to define...
Hello guys,
Can someone guide me through this problems solution?
I need to find the Thevenin's Equivallent for this circuit, between A and B.
I'm terrible at Circuits and I'm eager for some motivation and help.
Thanks a lot in advance.
Homework Statement
Find Vth and Zth.
frequency = 2kHz
Homework Equations
w = 2 * (pi) * f
ZL = j w L
ZC = -j / (w * C)
V = I*Z
ZR = R
The Attempt at a Solution
At first I tried using nodal analysis which I receive the value V = 0 v. I believe this is because this circuit only has dependent...
(sorry, I couldn't figure out how to insert an image from my drive) I have a problem where in finding the thevenin resistance I take out my independent sources and as a result I'm left with a resistor parallel to a short circuit. Should I ignore this resistor when calculating equivalent...
Hi, i am halfway through one of my assignments and i require some assistance. I do not seek the answer to the assignment just a little boost to my knowledge.
1. Homework Statement
Basically, if i am calculating the Thevenin's voltage and the resistor i have removed that is in question has a...
Homework Statement
[/B]
Homework Equations
[/B]
Node-voltage method
mesh current method
The Attempt at a Solution
[/B]
My problem is with the short-circuit current.
There are three meshes when you join the nodes a and b.
Let i1 be the cw current for the bottom right mesh, i2 be the ccw...
Homework Statement
I hope you can see the picture clearly. Someone drew lines over it,so please try to ignore that.
The problem here is to determine the current of ideal current source Ig, if following parameters are known:
-E1=50V, E3=30V
-R1=200Ω, R2=500Ω, R3=3kΩ, R4= 10 kΩ
-C=0.7 μF...
Homework Statement
I am to find the thevenin equivalent circuit without the load resistor (to the left of terminals a &b
Homework Equations
From class notes:
1- Remove the load resistor
2- find the open circuit voltage across a & b
3- Remove all voltage sources (replace with short circuit)...
Homework Statement
You have a circuit (attached pic) and want to find the Thevenin equivalent resistance and voltage.
Homework Equations
See below
The Attempt at a Solution
OK< here's what confuses me. If I simply look at the total resistance of the circuit from A and B, it seems to me that...
Hi everyone. I need some help with regards to a question on Thevenin's equivalent. I attempted to solve it in 2 ways but I got different answers when I tried to do it another way. However, I am not sure of my answer as I do not have the answer key at the moment. The picture below shows one of my...
Hello,
I am reading The Art of Electronics, and I have two specific questions regarding examples it has introduced. I am dealing with bipolar transistors the current chapter. I think my questions mostly stem from not understanding concepts.
The text has introduced the technique of...
Homework Statement
Find the value of R where RL equals 50 Ω, for maximum power transfer
I= 2A, R_L=50 ohms
Homework Equations
R_th=V_oc/I_sc
KCL,KVL,V=IR
The Attempt at a Solution
First, I created an open circuit including everything except R_L. Then i tried to solve for the Open Circuit...
Hi guys, I tried to calculate the Vos and Isc and both of them are zero..so the Thevenin's resistance is 0/0=undefined. How do I calculate the resistance when Vos/Isc fails,such like the wheatstone bridge?
Homework Statement
Hi everyone! I'm trying to find the thevenin equivalent for part A of this circuit: http://imgur.com/4Jdg8w8
Homework Equations
The Attempt at a Solution
I first remove part B, that is, open circuit it entirely. Then I try to find Voc across the two terminals that are...