# What's so hard about electrical engineering?

I enjoy a lot playing with electronics and making new stuff, and I also understand electronics very good and am determined to do electrical engineering no matter how hard they say it is. I just don't understand what so hard about it, some people say it's the complex circuitry involved in it and some say that its the math in it.

active| newest | oldestThere are many ways to solve the problems thrown up by the simplest system, when you get to complex systems the options become vast and selecting to optimum one is a real skill.

Having said that If you can rise to the intellectual and practical challenge the rewards are great, (perhaps not financial), A complex technology in an increasingly complex world. You will need good maths skills, a logical mind and the ability to stick at the studies to qualify.

Many do.

Good luck.

A basic electrical engineering program is a four-year undergraduate degree (baccalaureate), and includes a good hard-science component (physics and chemistry) along with calculus through complex analysis. Basic discrete circuit design is one semester of one class in that program. If your experience, and your expectation, is how to design fancy circuits from discrete components, then you will find electrical engineering extremely hard and confusing.

In the Engineering schools though, the basic maths course, at least in the first and second years was common to all of us, then we'd go off and do the vector calculus stuff, and the mechs would do mech stuff...and the civils would be outside throwing bread at the helicopters.

Steve

The top left corner is point A.

The bottom right corner is point B.

so if you have 4 nodes, you have 4 resistors...

if you have 9 nodes (3x3) you have 12 resistors...

if you have 81 nodes (9x9) you have 144 resistors...

Ohm's law and calculating parallel and series resistance is pretty straightforward - especially since they are each 1 ohm.

Calculate the resistance between point A and point B for each of these scenarios. It seems simple but the bigger versions get mind-numbingly complex very fast.

You are thinking of a sidewalk when frollard

has described a parking lot.

A

...just scroll down a bit...and see how it goes from simple to ridiculous university level math in a matter of steps.

https://www.google.ca/search?q=define:node

If in doubt - look it up, it is the information age! That said, nobody around here will be upset about you asking!

the face of a rubicks cube (3x3 squares) has 16 nodes.

You have a spacecraft in orbit around jupiter. Not only does it have to keep it's antenna aimed at earth., you are required to transmit data with 100 per cent Fidelity at earth at the maximum possible data rate. Decide the protocol and provide the data rate.

You have a polyphase AC transmission system. The network is fed by 10 1.8 gigawatt Turbo alternators, distributed over the network. The largest load, with a 0.8 powerfactor. Calculate here operating lag /lead at the 3Rd station v from the load. Assume the rest of the network it's running at unity power factor

To get a 'just works' solution there are often thousands of solutions. To get THE BEST solution or solutions that meet multiple complex design constraints often requires a LOT of work - almost anybody can do it, but they have a lot of rules to follow.

Fact is, electricity, generally electrons flowing in a metallic circuit act differently depending on what components are used. Each of these behaviours is usually very well documented but only in a mathematical sense - as a formula so to speak. Each component in a system compounds the overall formula of how the circuit will work, increasing complexity based on where it is placed. The same component in parallel to another component as opposed to series with another similar component will have a totally different result.

What's so hard? Taking an END goal, then working backwards figuring out what formula is required of to get the output from the input, then fitting the components to match that model or formula.

Honestly, entire computers are just groups of transistors...up to hundreds of billions of transistors attached in a logical fashion with code to make them work. There are other support components but the brilliance is in the CPU. Each of those transistors needs specific conditions for it to work properly, and meeting those conditions is the 'hard' part.