Recent content by anthonuc

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    Understanding KVL and Voltage Differences

    Not sure I never use KCL/KVL anymore lol. If you know how to use node analysis you can get the answer more quickly and easily. Establish a node as ground and the voltage at the node you want to solve you just sum the currents into that node to zero. Establishing the right node as ground...
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    Twin-T Notch Filter: Solve the Circuit with Node Analysis

    don't know if that helps. Solution: Yeah so I just changed to complex impedances (C = 1/sC) and used node analysis and with enough algebra I managed to manipulate the correct equation. You just set vx=0 since it's connected to ground.
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    Thevenin Equivalent with a dependent source

    no problem.
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    Thevenin Equivalent with a dependent source

    hopefully you know how to use kcl and kvl if not node analysis.
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    Twin-T Notch Filter: Solve the Circuit with Node Analysis

    Homework Statement This is a twin-T notch filter. [PLAIN]http://l23.sphotos.l3.fbcdn.net/hphotos-l3-snc4/hs1360.snc4/163224_10150132441064992_712009991_8008832_7339032_n.jpg Homework Equations R = R C = 1/sC L = sL The Attempt at a Solution Not sure if my complex impedance equations are...
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    Thevenin Equivalent with a dependent source

    Thevenin circuit is a resistor and voltage source in series. To reduce the circuit to a thevenin equivalent circuit you would replace all the resistances between a and b with one equivalent resistor and reduce the voltage sources to one source. think of two parallel resistors being...
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    Engineering Simple AC circuit with L and parasitic R

    Thanks for the help but I've managed to solve it correctly. You use sinusoidal steady state to find the parasitic R in the inductor. The R attached in the circuit is not the parasitic R. It's just a regular resistor. There's also some unknown parasitic resistance in the non-ideal inductor...
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    Engineering Simple AC circuit with L and parasitic R

    Hmm. Well in class we were taught to use sinusoidal steady states to solve these problems which is where the relevant equations came from. Using your method I get I=IL=(jwL+50)/(2costwt) Then solving for VL in V=IZ I get VL = (-w2L2+50jwL) / 2coswt However I'm not sure what to do...
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    Engineering Simple AC circuit with L and parasitic R

    Homework Statement [PLAIN]http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs894.snc4/72731_10150110340044992_712009991_7710053_709779_n.jpg The circuit has a non-ideal inductor with parasitic R. v0(t) goes to coswt as the limit of w goes to zero. The output signal has a +15 degree phase...
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    Engineering Combined Circuit Total Resistance

    Are the three bulbs the only resistances in the circuit? Then all you would have to do is find the total resistance of the lightbulbs which I believe you did. The two in series and then that in parallel with the other bulb should be the total resistance assuming the battery's resistance to be...
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    Engineering Basic RC Circuit but with parallel switch?

    Ah thanks for the reply. Current taking the path of least resistance? I've been told not to believe it as it's not actually true but maybe that pertains to real life and not ideal circuits for problems i guess. Anyway thanks again!
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    Engineering Basic RC Circuit but with parallel switch?

    Homework Statement I want to find ix in the circuit below when the switch opens at t=0 after having been closed for a long time.Homework Equations v(t) = v(infinity) + (v(0)-v(infinity))e-t/RC i(t) = C dv(t)/dt ix = isource - i(t) v(t) = voltage across capacitor i(t) = current through...