Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [electrical]

410 questions
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Does current have a physical effect on wire?

Does current have an effect on the wire it moves through? I think I heard somewhere that over time small wires in CPUs can move because of the current going through them. If it is a thing what's the technical term for it?
user7433547
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i wonder about scott connection [phase shift]

something like wye-delta and delta-wye connection. we can originally know wye-delta connection is step-down transformer and second side voltage phase is being to -30 degree. And also delta-wye connection is step-up transformer and second side…
Chris Park
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splitting sensor signal line

Is it possible in circuit design to split like say a temperature sensor line reading into 2 wires, and read by 2 different system/circuitry? My motive is to tap the signal line in a safe way without affecting or disrupting the other system…
sunny
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Do Electronic Engineers need to be "licensed"

Do Electronic/Electrical engineers need to be licensed? I have heard something along these lines but I do not recall where. And if so what is the license name? If I take a stab at my own question I am assuming it might have to do with specific…
Edwin Fairchild
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Posssible Delay for a electric circuit needed

While I know that it is impossible to slow light down I was wanting to delay an electrical response from a diode using either a resistor or a capacitor but I could not remember, which does which. The idea for the product is to create an electric…
RedCylon784
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Power Amplifiers operating in Saturation and VSWR issues

Are power amplifiers operating in saturation more immune to VSWR effects than their counterparts operating in more linear mode and if yes why?
ali khalil
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How does a smart bulb work?

There is a type of bulb in the market nowadays that detects load-shedding! I mean it keeps lighting after load-shedding. But my curiosity is if I turn off the switch of the bulb, it might have detected that load-shedding has occurred, but it…
DG_
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why does current like circulating?

why does the current in R2 remain always zero regardless the value of other parameters(V1,V2,R1,R3)?)
Swapnil Saha
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Can I harm my device doing these connections?

I was using a device (1) to intercept and read the SPI communication between a microcontroller and a LCD of another device (2). So, I did the conections as showed in the figure below. They use the same voltage level and SPI communication have the…
Daniel
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Can I use per unit method for true, reactive, and apparent Power

I would like to show apparent power (S) in Cartesian coordinate system with a circle of radius 1, where x axis represents reactive power (Q), and y axis represents true power (P). There's the formula: P^2+Q^2=S^2 Can I use these formulas to…
user155754
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Why AC is not used to excite synchronous machines?

In synchronous machines rotor is excited with DC and rotated so that due to change in mf falling on the conductors in stator an emf is generated.if we use Ac as an exciting means to excite rotor and then rotate rotor so that we get more change in…
vamsi krishna
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Is there a widely used vocabulary for electronics and electrical systems, much like the UMLS for medicine?

I am searching for an inclusive view and typology of electronic and electrical systems, and the design and engineering concepts etc. that underpin them. Is there a widely used vocabulary for electronics and electrical systems, much like the Unified…
forgodsakehold
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Filter passband amplitude ripple and group delay ripple (group delay variation)

Are they completely independent? or does one lead at least partially to the other?
ali khalil
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Male configured 'outlet'

All I can find is a female configuration like this, but need a male configuration.: BougeRV 50 Amp RV Power Outlet Box,Enclosed Lockable Weatherproof Outdoor Electrical Nema 14-50R Receptacle,125/250 Volt For Temporary Hookup RV Camper Travel…
mrcaptainbob
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i wonder about scott connection's phase shift like a 90 degrees

first of all it is necessary to refer this link. https://circuitglobe.com/scott-t-transformer-connection.html In this link u can know scott connection and i wonder about V2t and V2m's phase difference. something like wye-delta and delta-wye…
Chris Park
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