Recent content by Schfra

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    Engineering Solving a Circuit with a Complex Source

    I found the impedance of the capacitor to be .025j. I found the voltage to be 4.924-.868j. I then divided voltage by total resistance, and converted back to the time domain to get 5sin(20t+9.707deg) for ic(t). Does this look correct so far?
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    Engineering Solving a Circuit with a Complex Source

    Homework Statement An image of the problem is attached. I need to solve for ic(t) and vc(t) by adding a complex source. Homework EquationsThe Attempt at a Solution I don’t know where to start here. I don’t understand the question, and I can’t find the information I need in my notes. Can...
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    Differential equation with power series method

    Can you explain what you mean by this and why I have to do this? I did get 0 for my coefficients while attempting to solve earlier.
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    Differential equation with power series method

    Homework Statement I need to solve the DE y’ = x^2y using the power series method Homework Equations y = sum(0->inf)Cnx^n y’ = sum(1->inf)nCnx^(n-1) The Attempt at a Solution I plug in the previous two equations into the DE. What is the general procedure for these problems after that...
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    Engineering Solve LC Circuit Problem: Examples & Resources

    Looking through my notes I found the equation i(t) = i(0)e^(-(R/L)t), which gives me an answer of i(t) = 60/23e^(-15t/11) for the current through the inductor and -60/23e^(-15t/11) through the resistor. I’m not sure if that’s what you meant by initial conditions, or if my answers are correct.
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    Engineering Solve LC Circuit Problem: Examples & Resources

    I re-did the calculation and got 60/23 or about 2.61 for the current through the inductor. Would the new circuit just be an inductor of 11/3H in series with a resistor of 5 Ohms?
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    Engineering Solve LC Circuit Problem: Examples & Resources

    For steady state, I believe I have to treat inductors as short circuits. I’ve simplified the circuit and then used current division and got a current of 55/23A through the inductor. If I did that right, I think this should be the initial current. What would I then do with that to get current...
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    Engineering Solve LC Circuit Problem: Examples & Resources

    What’s the process for solving a problem like this though? This is the first RL circuit problem I’ve been assigned to do so I’m pretty lost. I assume I can replace the two inductors on the right with one inductor with a value of 2/3H. After that, I have no idea what to do. The closest thing...
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    Engineering Solve LC Circuit Problem: Examples & Resources

    Homework Statement An image of the problem is attached. I have to find 2 currents in an LC circuit. Homework Equations V = L(di/dt) The Attempt at a Solution [/B] I have no clue how to do this type of problem. Are there any examples problems similar to this online? Or can someone give me...
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    Constructing K-Maps & Gray Codes w/ 2, 3 & 4 Bits

    I know how to construct a Gray code for k-maps with 2 bits, 3 bits, and 4 bits. I also looked at the Wikipedia page for Gray code that explained how to construct an n-bit Gray code from the Gray code for n - 1 bits. What I’m still confused about is where to place the bits. Should the bits be...
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    Designing circuits after 101 class

    I was wondering why some of the circuits had no resistors in them. Is this because there is resistance built into the gates?
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    Designing circuits after 101 class

    Im just finishing up my first digital electronics class right now. I know how to design the logic for basic circuits and some slightly more complex ones. I don’t quite understand how to design actual circuits for a few reasons. 1.) When we design “circuits” in class, we just draw them without...
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    Finite State Machines: Differences between Mealy and Moore Machines?

    There are two types of finite state machines (at least that I know about), mealy and Moore. What are the practical differences between them. I understand that mealy machines take the input into account for the output logic, but are the two machines used for different purposes? Or can the same...
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    I How does the equation for experimental uncertainty work?

    Why are they then reporting the value given from the above equation as the +/- value in the attached image? Doesn’t this imply a symmetry? The value can be anywhere between the value + the uncertainty and the value - the uncertainty.
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