Electrical engineering is an engineering discipline concerned with the study, design and application of equipment, devices and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution and use.
Electrical engineering is now divided into a wide range of different fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, electronics, and optics and photonics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics, and electrical materials science.Electrical engineers typically hold a degree in electrical engineering or electronic engineering. Practising engineers may have professional certification and be members of a professional body or an international standards organization. These include the International Electrotechnical Commission (IEC), the Institute of Electrical and Electronics Engineers (IEEE) and the Institution of Engineering and Technology (IET) (formerly the IEE).
Electrical engineers work in a very wide range of industries and the skills required are likewise variable. These range from circuit theory to the management skills of a project manager. The tools and equipment that an individual engineer may need are similarly variable, ranging from a simple voltmeter to sophisticated design and manufacturing software.
Hello everyone,
I wanted to build an electric motor, and I have done quite a bit of research on it. However, all the links that I get are for “simple motors”, which are essentially just a D battery, a kitchen magnet, and coil of copper wire. I have tried these already, but I wanted to build a...
I have a 30V - 100A power supply that I want to control using a -/+ 10V NI DAQ. I want a relay between the current output of DAQ and the power supply. Please advise the specification of relay to use. I'd appreciate a comment on how to connect it also.
*A is the node all the way to the left above the 30V but I didn’t end up using it because I don’t think you need it since the same as 30V, right? *
I know I messed up somewhere because shouldn’t V1-4 = 30? After finding my V1 I used that value to find the other Vs and it ended up being close to...
Hi all Physics Forum User, I am again coming to you to ask for help.
For the above question I can't make sense of how a larger G will cause Vo/Vi to approach 1. For this I'll call Vo=V and Vi=I
As can be seen from the control loop
B = A*H and V = B*K hence V = A*H*K
Also A = I - C and...
Hello guys!
I'm just a begginer student. I found this circuit of a wattmeter that works only with resistors. Can someone explain to me how the 33k resistor give a voltage of 1 mV to 1 Watt? I did not understand why these resistor values has been chosen and why the it measures only in the 33k...
I have calculated V3 to be 294.62sin(1800 pi t + -0.56)V
I am confident this is correct but I now need to work out the frequency of the waveform, I believe it may be 900 but I am not too sure if my calculations are correct and I can't find anywhere on line that aids me in this particular instance.
Summary: Make a circuit that counts the number of nodes in a standing wave generator
I have a an assignment to complete this Term, the assignment consist in making a machine that would produce standing waves in various frequencies, (for example the typical motor connect to a string with...
I measured current through a parrallel circuit and my multimeter fluctuated massively and compared to theoretical values they are miles out. multimeter was changed over to ampmeter. I used duel power supply. Throughtout the measuring i kept getting short circuits. The circuit on the...
i have a neobydium magnet of grade n40 , the diameter of magnet is 15mm and thickness is 10 mm ,
now i want to calculate the pull force between this magnet and a steel plate when there is no gap between them ;
& in second case i want to calculate the pull force when i put a 0.15mm copper plate...
It is a common center-tap transformer which is electrically demonstrated as in figure (ideal one);
In my opinion, open circuit and short circuit tests cannot be applied directly. How can I place secondary reactances ? And how can I test its all parameters in laboratory ?
sup guys
im currently year 2 studying electrical & electronic engineering. Next year we had to choose modules where it was split equally between magnetics(mainly covered with waves, optoelectronıcs, nano technology and like magnetic materials etc), power(renewable, machine power, a bit of...
Hey all I'm new to this site and I got to say after lurking around for a while and browsing this is a great site. I'm in my first year studying Electrical & Electronic Engineering and I got my heart towards getting into university to gain a HNC or HND.
I have a lot of questions to answer (130...