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Electrical Engineering Forum

Join the expert discussion on electrical engineering topics. Topics like the uses of electricity and the equipment for power generation. Circuits, Fiber, Signals and Systems, Semiconductor Devices...

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Building a Conductivity Tester with LED Indicators for Chemistry Class

Mar 6, 2011 · Replies 1 · Mar 6, 2011

Replies: 1

Views: 2K

HHO Generator Design for 6.4L V8 Engines

Mar 6, 2011 · Replies 1 · Mar 6, 2011

Replies: 1

Views: 4K

Wiring a DC motor to two 9 volt batteries

Mar 5, 2011 · Replies 5 · Mar 6, 2011

Replies: 5

Views: 19K

Transistor - an important concept of invention?

Mar 4, 2011 · Replies 8 · Mar 6, 2011

Replies: 8

Views: 4K

What Will Happen to a Lamp Connected to AC & DC?

Feb 16, 2011 · Replies 20 · Mar 6, 2011

Replies: 20

Views: 5K

Need help picking out an oscilloscope

Mar 4, 2011 · Replies 6 · Mar 5, 2011

Replies: 6

Views: 4K

Can an MSP430 Handle 1MSPS 16-Bit Sampling for Five Channels?

Mar 4, 2011 · Replies 3 · Mar 5, 2011

Replies: 3

Views: 2K

Which Multimeter Should I Choose for My Agricultural Engineering Degree?

Mar 4, 2011 · Replies 23 · Mar 5, 2011

Replies: 23

Views: 8K

Can a lift electromagnet pull a permanent magnet?

Mar 3, 2011 · Replies 5 · Mar 5, 2011

Replies: 5

Views: 4K

What can be replace the L14F1 and LD271 ?

Feb 27, 2011 · Replies 7 · Mar 5, 2011

Replies: 7

Views: 6K

Converting Mini Split AC to DC Power w/ 48V Motor: Expert Advice Needed

Mar 3, 2011 · Replies 3 · Mar 4, 2011

Replies: 3

Views: 3K

Is a Shunt Resistor Necessary for a 12VDC, 40W Electromagnet Setup?

Mar 4, 2011 · Replies 7 · Mar 4, 2011

Replies: 7

Views: 5K

What is it that makes antenna length so important?

Nov 20, 2010 · Replies 10 · Mar 4, 2011

Replies: 10

Views: 10K

Wheatstone bridge offset-nulling circuit

Mar 4, 2011 · Replies 2 · Mar 4, 2011

Replies: 2

Views: 5K

Capacitor-input or choke-input filter?

Mar 4, 2011 · Replies 1 · Mar 4, 2011

Replies: 1

Views: 6K

What is the difference between matched and unmatched uncertainties?

Nov 2, 2010 · Replies 2 · Mar 4, 2011

Replies: 2

Views: 8K

Understanding Doping & Depletion Zone Formation

Mar 2, 2011 · Replies 2 · Mar 4, 2011

Replies: 2

Views: 3K

Can Motor Coil Cross-Section Equations Determine Torque and RPM?

Feb 28, 2011 · Replies 7 · Mar 3, 2011

Replies: 7

Views: 10K

How Can I Prevent False Triggering in My Relay Circuit?

Mar 2, 2011 · Replies 8 · Mar 3, 2011

Replies: 8

Views: 5K

AC transformer earth connection

Mar 3, 2011 · Replies 2 · Mar 3, 2011

Replies: 2

Views: 3K

Non-Touch Switch: Finding a Component Solution

Feb 28, 2011 · Replies 6 · Mar 3, 2011

Replies: 6

Views: 3K

Alternators and electrical motors

Mar 2, 2011 · Replies 5 · Mar 3, 2011

Replies: 5

Views: 3K

How the currernt in a superconductor is limited?

Mar 2, 2011 · Replies 14 · Mar 2, 2011

Replies: 14

Views: 3K

How Do I Choose a New PhD Topic in Electrical Engineering?

Mar 2, 2011 · Replies 6 · Mar 2, 2011

Replies: 6

Views: 2K

Understanding ESD Mats: Non-Wool Materials & Discharge

Mar 2, 2011 · Replies 1 · Mar 2, 2011

Replies: 1

Views: 2K

DC Motor Wires: Current Flow With/Without Insulation

Feb 27, 2011 · Replies 4 · Mar 2, 2011

Replies: 4

Views: 5K

NPN Transistor - Sink or Source?

Mar 1, 2011 · Replies 8 · Mar 2, 2011

Replies: 8

Views: 17K

Finding Test Sockets for Magnetic Sensor SIP & MSOP Packages

Dec 8, 2008 · Replies 8 · Mar 2, 2011

Replies: 8

Views: 4K

DC charging circuit Calculating I, V, and Z?

Mar 1, 2011 · Replies 3 · Mar 1, 2011

Replies: 3

Views: 3K

Axial flux generator dual rotor question

Feb 27, 2011 · Replies 1 · Mar 1, 2011

Replies: 1

Views: 4K

How Can I Design a 4-Button IR Transmitter for Buggy Control?

Feb 20, 2010 · Replies 12 · Mar 1, 2011

Replies: 12

Views: 5K

Topic for paper presentation

Sep 30, 2004 · Replies 3 · Mar 1, 2011

Replies: 3

Views: 26K

Power generation through building damping systems

Mar 1, 2011 · Replies 2 · Mar 1, 2011

Replies: 2

Views: 3K

Where can I find a schematic for a DIY component to VGA adapter?

Mar 1, 2011 · Replies 1 · Mar 1, 2011

Replies: 1

Views: 6K

Ammeter and Wattmeter in ac RLC circuit

Feb 26, 2011 · Replies 2 · Mar 1, 2011

Replies: 2

Views: 7K

Do electrical engineers have to be good programmers?

Feb 26, 2011 · Replies 4 · Mar 1, 2011

Replies: 4

Views: 29K

Voltage divider in transformers?

Feb 20, 2011 · Replies 4 · Feb 28, 2011

Replies: 4

Views: 5K

Guidance on wire gauge size for automotive wire in a bundle

Feb 16, 2011 · Replies 5 · Feb 28, 2011

Replies: 5

Views: 7K

Heating Element for Tree Grafting

Feb 27, 2011 · Replies 4 · Feb 28, 2011

Replies: 4

Views: 3K

What is the role of a jumper in mechanical assemblies?

Feb 28, 2011 · Replies 2 · Feb 28, 2011

Replies: 2

Views: 2K

Battery Indicator: How to Measure Remaining Energy

Feb 27, 2011 · Replies 4 · Feb 28, 2011

Replies: 4

Views: 3K

What Happens When High Voltage Meets High Amperage in a Coil Gun?

Feb 28, 2011 · Replies 2 · Feb 28, 2011

Replies: 2

Views: 4K

Understanding Current & Voltage in Circuits A & B w/ Diode and Battery

Feb 18, 2011 · Replies 11 · Feb 28, 2011

Replies: 11

Views: 4K

Circuit that will delay the turning on of a light

Feb 19, 2011 · Replies 19 · Feb 28, 2011

Replies: 19

Views: 19K

Circuit design question. Prototyping.

Feb 25, 2011 · Replies 4 · Feb 27, 2011

Replies: 4

Views: 2K

Feedback on a sound controlled light circuit

Feb 21, 2011 · Replies 10 · Feb 27, 2011

Replies: 10

Views: 4K

Regulating/capping voltage for a lamp

Feb 27, 2011 · Replies 1 · Feb 27, 2011

Replies: 1

Views: 3K

Calculate LED Current Draw w/ Resistor & 5V Supply

Feb 25, 2011 · Replies 3 · Feb 27, 2011

Replies: 3

Views: 44K

Calculate an electric circuit power

Feb 25, 2011 · Replies 9 · Feb 27, 2011

Replies: 9

Views: 5K

Cell tower near window is it a problem?

Feb 27, 2011 · Replies 2 · Feb 27, 2011

Replies: 2

Views: 2K

Earth pin in a standard UK plug.

Feb 26, 2011 · Replies 11 · Feb 27, 2011

Replies: 11

Views: 5K

Explaining a Strange Phenomenon: EM Field & PC Fan

Feb 25, 2011 · Replies 2 · Feb 27, 2011

Replies: 2

Views: 2K

Hobby Electronics Projects: Essential Equipment and Costs for Beginners

Feb 25, 2011 · Replies 5 · Feb 27, 2011

Replies: 5

Views: 5K

High frequency alternating magnetic field generator

Feb 25, 2011 · Replies 6 · Feb 26, 2011

Replies: 6

Views: 16K

Using a 555 timer as an analog frequency divider?

Feb 26, 2011 · Replies 3 · Feb 26, 2011

Replies: 3

Views: 8K

Converting three-phase into single/split phase

Feb 25, 2011 · Replies 4 · Feb 26, 2011

Replies: 4

Views: 35K

What Happens When One Side of a Wire Is Connected to a Battery?

Feb 22, 2011 · Replies 11 · Feb 25, 2011

Replies: 11

Views: 3K

Unit Step Function U(t): No Transient Signals

Feb 25, 2011 · Replies 1 · Feb 25, 2011

Replies: 1

Views: 2K

Minimization of a Multi Output Circuit

Feb 24, 2011 · Replies 1 · Feb 24, 2011

Replies: 1

Views: 2K

Calculating a frequency offset using a PIC

Feb 23, 2011 · Replies 2 · Feb 24, 2011

Replies: 2

Views: 5K

Current and Voltage from photovoltic cells

Feb 24, 2011 · Replies 2 · Feb 24, 2011

Replies: 2

Views: 6K

How to reverse the action of a small 12V DC MOtor

Feb 23, 2011 · Replies 3 · Feb 24, 2011

Replies: 3

Views: 7K

Troubleshooting a Simple Sun Tracking Device: Tips and Solutions

Feb 24, 2011 · Replies 2 · Feb 24, 2011

Replies: 2

Views: 3K

Differences between 3phase and 6 phase systems

Dec 9, 2007 · Replies 2 · Feb 24, 2011

Replies: 2

Views: 12K

Heating Nichrome Wire with 9.6V Battery - Newbie Help

Feb 22, 2011 · Replies 2 · Feb 23, 2011

Replies: 2

Views: 4K

Is there such a thing as a inverse varistor?

Feb 22, 2011 · Replies 6 · Feb 23, 2011

Replies: 6

Views: 5K

Proto board with gold plated contacts

Feb 23, 2011 · Replies 1 · Feb 23, 2011

Replies: 1

Views: 2K

Understanding B and H Fields: A Thought Experiment on Magnetic Field Propagation

Feb 22, 2011 · Replies 3 · Feb 22, 2011

Replies: 3

Views: 2K

Wide Range Strain Indicator Units

Feb 22, 2011 · Replies 1 · Feb 22, 2011

Replies: 1

Views: 3K

Need help understanding this circuit.

Feb 22, 2011 · Replies 7 · Feb 22, 2011

Replies: 7

Views: 3K

Calculating Irradiance from BPW21R Photodiode Current

Feb 19, 2011 · Replies 3 · Feb 22, 2011

Replies: 3

Views: 6K

Design a Portable Water Warmer for College Project

Feb 22, 2011 · Replies 3 · Feb 22, 2011

Replies: 3

Views: 3K

What causes of voltage runaway in series LC resonant circuit?

Feb 17, 2011 · Replies 3 · Feb 22, 2011

Replies: 3

Views: 4K

Connecting 2 Transformers in Series: Turn Ratio Equivalent

Feb 21, 2011 · Replies 12 · Feb 22, 2011

Replies: 12

Views: 11K

How to deal with battery in circuit

Feb 21, 2011 · Replies 2 · Feb 21, 2011

Replies: 2

Views: 2K

Help me in selecting a power supply for conductivity measurements

Feb 21, 2011 · Replies 3 · Feb 21, 2011

Replies: 3

Views: 2K

New Guy question about electronic component

Feb 11, 2011 · Replies 6 · Feb 21, 2011

Replies: 6

Views: 2K

PCI express for board-to-board link.

Sep 13, 2010 · Replies 3 · Feb 21, 2011

Replies: 3

Views: 4K

Information Theory Applied to Audio Signal Processing/Broadcasting

Feb 17, 2011 · Replies 5 · Feb 21, 2011

Replies: 5

Views: 2K

Optimizing Voltage Measurement in High Resistance Circuits

Feb 20, 2011 · Replies 3 · Feb 20, 2011

Replies: 3

Views: 4K

Help Finding RFID Reader & Interfacing for Senior Project

Feb 19, 2011 · Replies 1 · Feb 20, 2011

Replies: 1

Views: 4K

Help in electromagnetic sensors

Feb 20, 2011 · Replies 4 · Feb 20, 2011

Replies: 4

Views: 4K

Buck Converter High-Side Switch

Feb 18, 2011 · Replies 1 · Feb 20, 2011

Replies: 1

Views: 8K

Common Cathode Diodes: Safe to Use in Parallel?

Feb 19, 2011 · Replies 3 · Feb 19, 2011

Replies: 3

Views: 4K

How Should I Begin Programming My PIC16F628A Bluetooth Remote Control Car?

Feb 19, 2011 · Replies 1 · Feb 19, 2011

Replies: 1

Views: 4K

Purpose of circuit components in this schematic

Feb 16, 2011 · Replies 7 · Feb 19, 2011

Replies: 7

Views: 4K

Control Circuit (9VDC) For 12VDC Circuit

Feb 15, 2011 · Replies 11 · Feb 19, 2011

Replies: 11

Views: 5K

New Technology: Scientists Create 'Anti-Laser' Device

Feb 18, 2011 · Replies 1 · Feb 19, 2011

Replies: 1

Views: 2K

Convert Power Supply to 12V Lab Power Supply

Feb 18, 2011 · Replies 15 · Feb 18, 2011

Replies: 15

Views: 4K

Need help building a device to manipulate low voltage

Feb 18, 2011 · Replies 1 · Feb 18, 2011

Replies: 1

Views: 2K

Looking for a low/no current alternative to a SPST relay

Feb 12, 2011 · Replies 20 · Feb 18, 2011

Replies: 20

Views: 17K

Magnetism and magnetic field reflector

Feb 18, 2011 · Replies 1 · Feb 18, 2011

Replies: 1

Views: 5K

PFCD to help house power quality?

Feb 15, 2011 · Replies 10 · Feb 18, 2011

Replies: 10

Views: 3K

Should I Pursue Graduate Studies in Physics or Electrical Engineering?

Feb 17, 2011 · Replies 6 · Feb 17, 2011

Replies: 6

Views: 4K

How to install new lights in an automobile

Feb 17, 2011 · Replies 3 · Feb 17, 2011

Replies: 3

Views: 3K

FFT of a signal (non constant time)

Feb 15, 2011 · Replies 3 · Feb 17, 2011

Replies: 3

Views: 3K

Why don't superconductors emit a lot of heat?

Feb 10, 2011 · Replies 4 · Feb 17, 2011

Replies: 4

Views: 2K

Understanding the Use of Variable Notation in the DTFT

Feb 16, 2011 · Replies 1 · Feb 17, 2011

Replies: 1

Views: 2K

Remote controlled car - Bluetooth Controlled

Aug 4, 2005 · Replies 6 · Feb 17, 2011

Replies: 6

Views: 18K

Kit for Art of Electronics (Horowitz and Hill)?

Feb 16, 2011 · Replies 6 · Feb 16, 2011

Replies: 6

Views: 4K

Electrical Engineering

Electrical engineering is a discipline within engineering that focuses on the study and application of electricity, electronics, and electromagnetism. Electrical engineers design, develop, and maintain systems and devices that utilize electrical power, ranging from small-scale electronics to large power distribution networks. The field encompasses a diverse range of technologies, including telecommunications, signal processing, control systems, and power generation.

Electrical engineers play a crucial role in advancing technology, contributing to innovations such as computers, smartphones, renewable energy systems, and electric vehicles. Their work involves a combination of theoretical understanding, mathematical modeling, and practical application to create solutions that power the modern world.

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