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Activity for MissMulan‭

Type On... Excerpt Status Date
Answer A: How to treat data communication questions?
I may be a little bit biased on this one because it was my question which started this thread but : I don't think data communication question should be generally off-topic because it evolves binary logic and the way the data are sent/received is through electric signals.
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almost 3 years ago
Edit Post #285155 Initial revision almost 3 years ago
Question Splitting of message inside the layers
Assume a app generates a message (stack on computer).Each layer of the sending entity will put then control information in the data depending on the protocol and transmit the data to the next lower layer . ![](https://electrical.codidact.com/uploads/9VT3qobzToaebSDMYBQ3PR9c) Each layer of the ...
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almost 3 years ago
Edit Post #284982 Initial revision almost 3 years ago
Question Asynchronous connection question
Assume we have a channel and send 7-bit data(0100100) asynchronously with 1 parity bit(0).Suppose the start bit is 1.The end bits are in the same logic level with the idle state of the channel(0).How does the receiver understand the end bits?In my case the last 2 0s could have been the end bits but i...
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almost 3 years ago
Edit Post #284865 Initial revision about 3 years ago
Question What is minimum resolution here?
In this datasheet it says that the minimum resolution is 0.1uA for the 10mA range.What is this minimum resolution?Is it the sensitivity of the multimeter for the 10mA range?
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about 3 years ago
Comment Post #284818 I didnt go to university today and we had lab hours.In the laboratory we use a Protek IDM 505 and I didnt measure some circuits which are for homework so I am searching it online to see if I can find anything.
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about 3 years ago
Edit Post #284818 Initial revision about 3 years ago
Question Resistance of digital ampmeter
Can we find the internal resistance of a multimeter ,when we use the multimeter like a ampmeter, from its datasheet? I am trying to find the internal resistance of IDM 505 and I went to the datasheet to the current section and the most relevant thing I could find was the accuracy but as far as I k...
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about 3 years ago
Comment Post #284253 Yes i am interested in the capacitance between the windings.How can we make it bigger?
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about 3 years ago
Edit Post #284562 Initial revision about 3 years ago
Question Capacitors of voltage regulators
Assuming we have a voltage regulator : ![](https://electrical.codidact.com/uploads/qvcwiw5cLSoLWSigewwvvezS) Why do we have to ground Vin and Vout using 2 capacitors just like that?Co could be to provide a low resistance path to GND at high frequencies but what is the role of Ci?
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about 3 years ago
Edit Post #284545 Initial revision about 3 years ago
Question Confusion with Wikipedia article on multivibrator circuit
A while ago I made a question about the monostable multivibrator .Lets get a picture of it: ![](https://electrical.codidact.com/uploads/v4DMcGETqrfhmKpAaqYjEoPx) When switch is closed it enters its unstable state and it eventually returns to the stable state However Wikipedia states that thi...
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about 3 years ago
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about 3 years ago
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about 3 years ago
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about 3 years ago
Comment Post #284514 I will put some labels
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about 3 years ago
Edit Post #284514 Initial revision about 3 years ago
Question Find feedback of circuit
I have this circuit: ![](https://electrical.codidact.com/uploads/nk1CTmvqhfvpNqhUvgbaea2x) I think that R3 acts like a feedback path from the output to the input.However I am not sure what will happen if I change the value from 100Ohms to lets say 1kOhms. I have this image in mind: ![](ht...
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about 3 years ago
Comment Post #283942 "...how to make it because there are not genuine current sources in nature...".I disagree . A photodiode is a current source in photovoltaic mode.
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about 3 years ago
Edit Post #284253 Post edited:
about 3 years ago
Edit Post #284253 Initial revision about 3 years ago
Question Capacitance gain using conductive core for inductors
I have learnt that if we have 2 parallel conductive plates and we seperate them the capacitance is increased if we put a good conductor between the plates. Now the resonant frequency of a inductor(1mH) is about 100kHz which doesnt make it practical for application when the desired output frequency...
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about 3 years ago
Edit Post #284219 Post edited:
about 3 years ago
Comment Post #284219 @Olin Done!It has been fixed
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about 3 years ago
Edit Post #284219 Post edited:
about 3 years ago
Comment Post #284219 @Olin i dont think it is possible in Multisim NOT to make any zig-zag .
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about 3 years ago
Edit Post #284219 Initial revision about 3 years ago
Question Change of pins in monostable multivibrator
In monostable multivibrators we use a trigger signal applied to the base of the transistor which is usually off to enter the astable region ![](https://electrical.codidact.com/uploads/UTmX2yRXNrZ9cnWP5aWWYi4J) Can we instead have a pin which is connected directly to the base of Q1 and when that...
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about 3 years ago
Edit Post #284207 Initial revision about 3 years ago
Question Electrolytic vs ceramic capacitors about self-resonance frequency
Which capacitors have smaller self resonance frequency?I would bet my money on electrolytic capacitors because they are usually much bigger than the ceramic capacitors however I don't know if they self inductance changes as well so here we are asking this
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about 3 years ago
Edit Post #284196 Initial revision about 3 years ago
Question Capacitance of inductor
What is a typical value for capacitance of a real inductor? Does this internal capacitance exist only under AC and not DC?
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about 3 years ago
Comment Post #284076 @Carl please clarify?Isnt it well written,correct or well presented?
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about 3 years ago
Comment Post #284076 Because it is useful if someone wants to ask something relevant to the question.
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about 3 years ago
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about 3 years ago
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about 3 years ago
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about 3 years ago
Comment Post #284074 Yes oops I will edit the image.
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about 3 years ago
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about 3 years ago
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about 3 years ago
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about 3 years ago
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about 3 years ago
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about 3 years ago
Edit Post #284076 Initial revision about 3 years ago
Answer A: Parallel RLC circuit
It all depends on the values of the components:If ![](https://electrical.codidact.com/uploads/i8DAX2tLRnQV7eBAtFq2icWe) the system will very slowly decay until the energy of the system reaches 0. If ![](https://electrical.codidact.com/uploads/B6ExJnRcfsKJ7YkuCPD3pLqT) the system underg...
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about 3 years ago
Edit Post #284074 Initial revision about 3 years ago
Question Parallel RLC circuit
How to find the equation of voltage of the top common node of R1,L1 and C1 after the switch is moved? ![](https://electrical.codidact.com/uploads/TevMpbc9kY6tse4mnkjBN8Cp)
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about 3 years ago