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Questions tagged [electrical]

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-2
votes
1answer
163 views

DC signal output 0-5V with constant 10mA

I am designing a Digital Logic Board and need to add a DC signal output from 0 to 5V (with potentiometer) with a constant 10mA. I have checked designs with LM317 and LM334 for adjustable current upto ...
-2
votes
1answer
103 views

Electrical commutator for a coffee machine [closed]

i would like to understand the role of the commutator in the following diagram. NB: abbreviations: Co: commutator Re:heating element Pr: pressure switch Sa: heating element protection Ct: power ...
-3
votes
1answer
220 views

Why can't we use synchronous motors in fan? [closed]

What type of motor is used in wall mounted fan ? Can synchronous motor with damper winding be used in the same ? I know single phase induction motor is used in fan. But I am not able to figure out ...
-3
votes
2answers
127 views

Which root locus is better and why? [closed]

which root locus is better out of these two, and what is the reason?
-3
votes
1answer
249 views

How to make safe power supply? [closed]

I have a product which required 24 volt supply. I had experienced many times my product has been given more than 24 volt supply and system gone bad. Is there any way to privant the damage caused by ...
-3
votes
1answer
66 views

Pull up FPGA & Pull down

Hi everyone I have a question that I don't quite understand. Explain what pull resistors do in the FPGA, and why we use pull-up resistors for our button inputs.
-3
votes
1answer
69 views

Please help reduce the following circuit to an equivalent circuit with single resistor and source

Please help reduce the following circuit to an equivalent form as I am unable to understand the given solution in the book. If required I will share the solution later. Thanks in advance. @jonk, @...
-3
votes
1answer
45 views

what is the difference between active and reactive power?

What is active and reactive power ? does the active power means power flows from source to load and reactive power as its vice-versa?
-3
votes
2answers
93 views

Diode and resistance electronic

Can you tell me what is different between two circuit: One AC source and resistance in series second AC source, diode and resistance in series either: Can you show the difference in equations? ...
-3
votes
1answer
345 views

Double batteries capactior circuit

Can anyone help me solve this problem?
-3
votes
2answers
323 views

Can I use offline UPS for a PC? Will the delay affect my PC if it is running when the power goes out? [closed]

Can I use offline UPS for a PC? Will the delay affect my PC if it is running when the power goes out? im planning to set up an offline UPS at my home i need my PC running without any disruption but i ...
-4
votes
3answers
140 views

Back-EMF related question

If a circular dipolar magnet is set to roll down an incline through an array of coils set out as found in a bicycle dynamo – one above and one below per set, but linearly along the incline. Arranged ...
-4
votes
2answers
1k views

What is the tolerance level of SMD resistors?

As in normal ceramic and carbon film resistors we can calculate by color codes but nothing mention over the smd components so how to get it? As nothing is ideal so I believe there will be some ...
-4
votes
1answer
141 views

Earthing system on a mobile vehicle?

We have an electrical system which needs a low impedance earthing system below two ohms. We have provided a proper earthing system in our factory and it works well. Now my question is if the system is ...
-4
votes
1answer
65 views

Input voltage drop [closed]

I have a circuit, the characteristic of the load is unknown, most probably resistance and capacitance, the input for the circuit is %v and frequency is varying from 10 Hz to 30 MHz. once the input ...
-4
votes
2answers
381 views

How to draw a GRAPHICAL REPRESENTATION FSM

And Here is the answer, can you explain me specifically? I really dont know how to draw this graphical FSM graph.
-5
votes
1answer
93 views

Need electrical schematic of this component

For my graduation project I need this converter but I would like to have the electrical schematic. This is the link to the store where I bought the part. That's all I know. I have looked up the chip ...
-5
votes
1answer
38 views

What is the current drawn by a faulty appliance? [closed]

Is the current drawn by a faulty appliance greater than the rated value or is zero?
-7
votes
2answers
941 views

Using Wi-Fi during lightning [closed]

Is it safe to use Wifi during lightning or a thunderstorm ? How may I get electrocuted?
-7
votes
2answers
371 views

Electrical Engineer being autodidact (Without university) [closed]

for personal reasons I can't go to the university and i would like learn a lot of electronics oriented to computers, I am not new in the software programming but in all related with the hardware yes, ...
-10
votes
1answer
173 views

Curiosity in digital electronics [closed]

Do computers really understand binary language and if yes how?? ( I guess no because they don't have brain to do such tasks.)