Questions tagged [electrical-engineering]
Study and applications of electricity, electronics, and electromagnetism. Use this tag when someone who has trained as an electrical engineer is likely to be able to answer your question.
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So I am building this mechanism and I need to bring the rotation down without changing speed or direction
Just like the Title said I need to move rotation down without changing speed or direction. I can’t use belts because since I will be using a motor, when it stops the belts won’t.
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Good, reliable, low-resistance electrical connections to an aluminum vacuum chamber
Vacuum chambers for physics experiments and scientific equipment are sometimes made of aluminum, though stainless steel and mu-metal chambers are used as well.
Aluminum forms a thin native oxide layer ...
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Power station design
I have often read that nuclear power stations (or any big fossil fuel station for that matter) are only suitable for base load power generation as they cannot easily be ramped up and down to match ...
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urban concept vehicle with internal combustion engine (gasoline) Shell eco marathon [closed]
my question is, what components in the electrical system should we focus on and consider while building the vehicle? with the resources as well.
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Shell Eco Marathon Hydrogen Prototype Class
I am a part of a team developing propulsion system for the shell Eco Marathon Hydrogen Prototype class. I wat to size the PEM fuel cell correctly. Can anyone provide some resources or detailed ...
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Difference between polarization angle and poling angle in piezoelectric material
I was reading the research article: Demonstration of optimizing piezoelectric polarization in the design of a flextensional actuator, where I had confusion differentiating between poling angle, which ...
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Making Silicone Rubber Surface Conductive
Hey Engineering Community, a physicist this side.
I am tinkering on a project where I need a local deformation of the thin sheet(0.2mm thickness, 25cm*20cm dimension); pressing on the surface from one ...
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Why are there no UPS power supplies that use an external Automotive battery for storage?
What I've learned:
A: UPSs generally use sealed lead acid batteries, which use a slightly higher voltage to charge. Using an auto battery will result in the battery being in a slight state of ...
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How is the city power grid routed and connected to individual locations such as houses?
I'm an electrical engineer but I don't know enough about the power distribution grid or civil. I'm no electrician either.
My initial question is how does a new construction, like a home, get safely ...
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How to check if a USB conector is broken
Suppose we want to check that usb port is working. we can do the continuity test with a multimiter.We connect the positive part of the multimiter to positive part of the connector and we do the same ...
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Fixture to hold and deliver current to crystal cathode in vacuum chamber
At my internship, I have a small crystal (about 5-8mm long by 2-5mm thick) that needs to be mounted in a vacuum chamber (which is 35mm on the inner diameter) to serve as a cathode with 1.0 to 1.5A of ...
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Find the equivalent resistance between the points $A$ and $B$
In the figure shown below, find the equivalent resistance.
I know I should add my attempt but I don't know how to approach these type of problems. This isn't the standard series-parallel combination ...
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Battery thermal loss
A copper bus bar is subject to a short circuit current of 500 A for 10 s. The section of the bus bar, through which the current flows, has a length L = 50 mm and a cross section of A = 20 mm^2. ...
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Will a bare wire encircling a tent and connected to a tall metal rod help to protect the tent from a direct lightning strike?
I am planning to go camping later this month and I am concerned about lightning since the campsite I will be staying at is located on flat terrain in a rural area in Illinois. This campsite is located ...
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What are the criteria for selecting CTs in a power system?
In powersystems how can we select CT's whith dinite sepecifications?
for Metering and protection systems
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