In my opinion, the voltage across the C1 should be 9V as the potential on the side of the positive plate of the capacitor should be (15-6)V and on the other be 0V.
Similarly the potential across C2 should be (7-0)V.
Here I'm basically assuming that the voltage at the negative terminals of the...
I am given that all the BJTs are the same.
First of all, when finding node voltages like Vref should I make the node voltage a voltage source first and then do circuit analysis? If so then I would use KVL but that does not give me Vref = 2Vbe.
I do know that Vref = Vb1 = Vb2. What am I doing...
Hi all,
I was trying to solve this but I'm stuck as you can see in my notes below:
Using simulator the I1=3.125 A | I2=-1,857 A | I3=4,375 A and Power of the dependent current source = -46.875 W
Any idea, what could be wrong ?
Thanks.
I've been trying to use KVL/KCL here but I can't get any. The only thing I accomplished is R6 has 0V, 0A (KVL with its loop). All the other ones I can't get any? Thanks
Hi,
I was reading KVL and KCL and I read that KVL cannot be applicable to all the situations specially when :-
" KVL is applicable on the assumption that there is no fluctuating magnetic field linking the closed loop. While, in presence of changing magnetic field in a High Frequency but short...
Homework Statement
https://imgur.com/a/XySpV (If above image can't be seen.)
Homework Equations
KCL/KCL
Rth=Vth/I
The Attempt at a Solution
Included in Screenshot.
What I did was Open-Circuited the Load and use Nodal Analysis to find Voc
Then, I shortcircuited the Load to...
Homework Statement
This is just one of the example problems in my book which is already solved for me, but I don't really understand their solution which I'll post here:
They start out with assuming Vin is very negative, which makes D1 turn on and makes Vout=VD,on+Vin. THen they solve for...
Homework Statement
The Question wants to find the Voltage Across The Current Source 2A and 5A
Homework Equations
KVL
KCL
Ohm's Law
The Attempt at a Solution
I tried to Using KVL and KCL for all Closed paths and node but I just Couldn't Figure how to relate them to find the voltage across the...
Homework Statement
imgur link: http://i.imgur.com/JETj0Cq.png
Homework Equations
V_L = L\frac{dI_1}{dt}
V_L + V_1 + V_2 + V_{R1} = 0
The Attempt at a Solution
[/B]
Just using basic KVL, shouldn't V_L = -V_2 - V_1 - V_{R1} and so therefore we should get
\frac{dI_1}{dt} = \frac{-V_2 -...
Homework Statement
Find i and v_x
Given answer:
2. Homework Equations
3. The Attempt at a Solution
I have attempted the problem in two different manners, and I consistently reach a different answer. I would appreciate if someone would be willing to take the time to attempt the problem...
Homework Statement
KVL for a RLC circuit given current direction and polarity of a resistor?
Here is the diagram of the circuit:
Homework Equations
KVL
Sum of voltages equal zero
The Attempt at a Solution
I am actually looking for the voltage across the inductor (VL), so I decided the...
Homework Statement
Obtain the state equations in Matrix form for the two-input and one-output circuit shown in the figure below where the output is i_2.
Homework Equations
Ohm's Law, KVL, KCL
The Attempt at a Solution
Currents i1, i2, i3 assumed clockwise. Is there a better assumption I...
Homework Statement
In my Intro to EE class we have a homework assignment with the following problem:
I think I finished part a but want to make sure that I am doing the problem correctly before I move on to the next part.
Homework Equations
The Attempt at a Solution
Please help how Ve is calculated what i think is that it should be:
-Ve=-Vee+IeRe;
How Ve is taken positive please someone draw equivalent circuit for same
Homework Statement
I'm in a lab and we have this circuit & question as part of the pre-lab
The Attempt at a Solution
I began trying to use nodal analysis to get Va & Vb & to then use Vab to get the voltage and then the current but after doing what you can see above, I stopped because I...
Homework Statement
Here is the homework problem I was given:
The Attempt at a Solution
Above is the work that I began, however, I have an overwhelming feeling that I am incorrect and also I don't know how to continue to the next part/parts. Would someone please help me?
Thank you
H
Homework Statement
thevenin's equvalent circuit of the network
Homework Equations
thevenin's voltage
thevenin's impedance
The Attempt at a Solution
using nodal analysis i tried to find thevenin voltage but the dependent source and the dependent variable troubling me!
Homework Statement
Compute all the currents labeled using the mesh loop method.
Homework Equations
Parallel Resistors
1/Rt=1/R1+1/R2...+1/Ri
Series Resistors
R1+R2...+Ri
The Attempt at a Solution
My attempt at the kvl and kcl analysis, I think I did this wrong because I can't solve for...
Homework Statement
Find ix and Valpha
[/B]
Homework Equations
KCL
KVL
The Attempt at a Solution
[/B]How do I determine the number of KCL and KVL equations? In this problem I am solving, there are 6 unknowns so I need 6 equations. I can write 4 independent KCL equations, 1 KVL at loop 1(to...
Homework Statement
Find ##a)\ H(s)=\frac{V_o}{V_s}## of the filter in the circuit below.
##b)\ ##The center frequency ##\omega_0##
##c)\ ##The band-width B
Correct answers:
##a)\ H(s)=\frac{6s}{12s^2+11s+1}##
##b)\ \omega_0=0.28\frac{rad}{s}##
##c)\ B=0.71\frac{rad}{s}##...
< Moderator Note -- thread moved from the EE forum to the Homework Help forums >
Please view the attached.
The answers are:
i1 0.1429
i2 0.4286
i3 0.2857
So how do I work this out? I assume you use kirchoffs current law, can someone show me the step? Thanks :)
Homework Statement
Write the KVL Equation for the outer loop
Homework Equations
The Attempt at a Solution
The question above is a sample I have made for such a condition. The goal is not to find the value, but only write the correct equation. If an independent current source is connected...
Homework Statement
Look at the circuit given in figure 1. Solve for the three currents, I1,I2,I3.
Homework Equations
KVL: Sum of voltages in a closed loop equals zero
KCL: Sum of currents entering a junction equals the sum of currents exiting a junction
Ohm's Law: V=IR
NOTE: Nodal analysis...