Recent content by Trespaser5
-
T
Inverse curves related to JFET characteristics, help
Hi, Thanks so much for the reply and...I think I may understand but I just want to check. I drew a tangent on the curve at that point, the took the difference in y (Ids) and divided it by x (Vds) and divided it into 1. It gave me a close answer, it also gave me a close answer to some other...- Trespaser5
- Post #3
- Forum: Engineering and Comp Sci Homework Help
-
T
Measuring Voltage with an Oscilloscope: Channel A RMS Voltage
It sounds like it, assuming it's a sine wave take your amplitude and divide it by the square root of 2.- Trespaser5
- Post #3
- Forum: Engineering and Comp Sci Homework Help
-
T
Inverse curves related to JFET characteristics, help
Inverse curves related to JFET characteristics, help! Hi, This is an example given in a lesson which is closely related to a coursework question I'm trying to complete, the problem is I can't understand how they have got the results they have. Here is the statement giving the relationship...- Trespaser5
- Thread
- Curves Inverse
- Replies: 3
- Forum: Engineering and Comp Sci Homework Help
-
T
NPN and PNP transistors and load
Hi Sylvia, That is my question really, I have set up these simple on the circuit simulator and observed that arrangement of the load and DC voltage source doesn't matter to the current in the circuit. However when I tried to replicate the PNP circuit shown using a bench power supply unit (the...- Trespaser5
- Post #7
- Forum: Electrical Engineering
-
T
NPN and PNP transistors and load
I've attached some examples of the circuits on the circuit simulator, when I wired the circuit in reality I used a inductive proximity so the base was obviously driven in a different way. Thanks for your answers Kyle- Trespaser5
- Post #5
- Forum: Electrical Engineering
-
T
NPN and PNP transistors and load
Hello, I've been playing with transistors on a circuit simulator and found that it doesn't matter on an NPN transistor whether I put the load on the collector or emitter side, the load still has the same current flowing through it. The same is true for the PNP transistor, however when I...- Trespaser5
- Thread
- Load Npn Transistors
- Replies: 7
- Forum: Electrical Engineering
-
T
Engineering Synchronous Machines - Open Circuit and Short Circuit Tests
Residual flux ? I'm not sure about that, fields collapse pretty fast. Usually residual charge is left in the capacitors and it takes time for them to discharge. That's from a practical point of view though when I'm working on circuits, I'm not sure what your equation says.- Trespaser5
- Post #2
- Forum: Engineering and Comp Sci Homework Help
-
T
Near end coupling coeffecient problems
I have been given a formula Kne = \frac{1}{4Td}(CZo+\frac{L}{Zo}) I've been given C as 10pF and L as 80nH and Zo as 70.7. I have calculated Td from the formula propagation velocity = 1/\sqrt{LC} and the line capacitance and inductance are 400nH and 80pF and then divided this into 0.05m the line...- Trespaser5
- Thread
- Coupling
- Replies: 1
- Forum: Engineering and Comp Sci Homework Help
-
T
Transposition as part of a laplace transform
I am doing a laplace transform as part of a coursework assignment. I have some example transpositions that are relevant to the question I am answering but I can't see how the author has got from one arrangement to the next. [b]2. Homework Equations He has given 1/(s^2(τs+1)) =...- Trespaser5
- Thread
- Laplace Laplace transform Transform
- Replies: 2
- Forum: Calculus and Beyond Homework Help
-
T
Constitutive Equation for required flow to maintain temperature
I have an endothermic gas generator which maintains a heat of 850 °C while not generating endothermic gas. The generator maintains it's temperature through a burner control system, however coolant still runs through a water jacket around the outlet pipe (which in this state has no gas running...- Trespaser5
- Thread
- Flow Temperature
- Replies: 3
- Forum: Engineering and Comp Sci Homework Help
-
T
A diode with a resistor in parallel and in series.
Thank you so much. I think I was mis understanding that the voltage drop stated was the same as the voltage shown across, when that twigged today I got it, what a feeling :) Thank you for your help and time :)- Trespaser5
- Post #3
- Forum: Engineering and Comp Sci Homework Help
-
T
A diode with a resistor in parallel and in series.
I have a diode with a resistor in parallel(R2), but also diode resistor circuit has a resistor in series with it(R1). I have uploaded a drawing as well but I think it takes a bit of time for them to be authorised. The values of the circuit are Vs = 20v R1 = 3kΩ R2 = 470Ω Diode = Has a Volt drop...- Trespaser5
- Thread
- Diode Parallel Resistor Series
- Replies: 2
- Forum: Engineering and Comp Sci Homework Help
-
T
How to graph a sin function with respect to it's limits and x intercepts
I've been trying all week but what I can't understand is that as [sin][/-1](0) is always 0 then any value I put in between 0 and 2∏ I get that value as an x intercept, where am I getting confused ?- Trespaser5
- Post #6
- Forum: Calculus and Beyond Homework Help
-
T
How to graph a sin function with respect to it's limits and x intercepts
that's the key to the door, thankyou :)- Trespaser5
- Post #5
- Forum: Calculus and Beyond Homework Help
-
T
How to graph a sin function with respect to it's limits and x intercepts
sorry, i didn't have my calculator in radian mode. Still I don't understand how I get the values of the x intercepts mathamatically in the same way as you do with polynomial expressions ?- Trespaser5
- Post #3
- Forum: Calculus and Beyond Homework Help