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...

Threads

Resistance Temperature Detectors

  • pinkcashmere
  • · Replies 1 ·
Replies
1

Very simple name-plate question

  • tim9000
  • · Replies 7 ·
Replies
7

What's this thing on my electric motor?

  • 673849817
  • · Replies 7 ·
Replies
7

Understanding Capacitor and Inductor Behavior: A Physically-Based Explanation

  • Passionate Eng
  • · Replies 3 ·
Replies
3

Calculating Thevenin Equivalent Doesn't Seem Practical

  • yosimba2000
  • · Replies 8 ·
Replies
8

Transmission line transient simulation

  • isison
  • · Replies 4 ·
Replies
4

What's the relationship between electric power and heat?

  • Guidestone
  • · Replies 10 ·
Replies
10

Built-in voltage of pn junction diode

  • cnh1995
  • · Replies 7 ·
Replies
7

How is an RF signal generated from AC current?

  • rocket100
  • · Replies 8 ·
Replies
8

How to design discrete circuits for transistor beta changes?

  • dpsciarrino
  • · Replies 4 ·
Replies
4

Why can't they track number stations?

  • houlahound
  • · Replies 8 ·
Replies
8

What have you guys engineered in your free time?

  • zachdr1
  • · Replies 11 ·
Replies
11

How to make the sound of my doorbell circuit louder?

  • pmostafa
  • · Replies 2 ·
Replies
2

Can I Control a 2-Way Motor and Change Direction without an Arduino?

  • innovation001
  • · Replies 5 ·
Replies
5

Non conservative electric field and scalar potential V

  • fog37
  • · Replies 2 ·
Replies
2

Does VBase / ZBase give IActual or IBase?

  • tim9000
  • · Replies 7 ·
Replies
7

How long do eddy currents persist after switching off a magnetic field?

  • Di Chang
  • · Replies 1 ·
Replies
1

Coil Winding Direction: Clockwise vs Counter-Clockwise

  • Buych778
  • · Replies 1 ·
Replies
1

Self-regulating heating cables low power output

  • amrmohammed
  • · Replies 19 ·
Replies
19

Understanding Lenz's Law: Impediments to Electromagnetic Induction

  • adeborts
  • · Replies 1 ·
Replies
1

Why Use Concentric PE Cables in Frequency Converter Circuits?

  • neduet
  • · Replies 6 ·
Replies
6

Cable core colours for low frequency cables per HD 308 S2 and IEC 60304

  • neduet
  • · Replies 2 ·
Replies
2
Replies
2

Transistor's equivalent circuit

  • potatowhisperer
  • · Replies 7 ·
Replies
7

What happens if I connect the electric cables in this way?

  • shaft
  • · Replies 5 ·
Replies
5
Replies
4

What is the pipe on a 60 MVA power transformer?

  • neduet
  • · Replies 2 ·
Replies
2

Why does ifft(fft(x).*fft(h)) give correct RC convolution results?

  • davidbenari
  • · Replies 1 ·
Replies
1

Double Busbar Scheme for outdoor switch yard system (132kv)

  • neduet
  • · Replies 8 ·
Replies
8

Calculating current distribution in a HF coaxial cable?

  • Cedric Eveleigh
  • · Replies 5 ·
Replies
5

Solving a Series RLC Transient Analysis Problem

  • Junior
  • · Replies 1 ·
Replies
1

How many batteries are needed to light up this led button?

  • shushi_boi
  • · Replies 4 ·
Replies
4

Rainwater-powered alternator using a water wheel for a science fair project

  • yrjosmiel73
  • · Replies 29 ·
Replies
29

From where we measure current in a pn junction diode

  • NIKHEL RAINA
  • · Replies 2 ·
Replies
2

Calculating Resistivity across a mesh sheet

  • AlexTheFirst
  • · Replies 7 ·
Replies
7

What is the step for designing a 3 Phase Inverter?

  • nunuwishnu
  • · Replies 1 ·
Replies
1

How Can I Operate a Japan Servo AS27278 Motor?

  • toungeinamo5492
  • · Replies 1 ·
Replies
1

Power Inverter + Solar Panel: Run DVR 24/7?

  • xRascal
  • · Replies 4 ·
Replies
4

Can Electromagnets Achieve High Holding Force with 30cm Separation?

  • boileroo
  • · Replies 1 ·
Replies
1

Heating up a wire using electrical current

  • Beatriz Perez
  • · Replies 2 ·
Replies
2

How many LEDs from fixed supply

  • John1397
  • · Replies 4 ·
Replies
4

Harnessing electricity from an electromagnetic field

  • TardisRobber
  • · Replies 3 ·
Replies
3

Does Using Multiple 20mW Transmitters Increase Remote Control Car Range?

  • Tesladude
  • · Replies 4 ·
Replies
4

Circuit that controls time and distance for a 7.6v vehicle?

  • lonely_nucleus
  • · Replies 3 ·
Replies
3

Solve NPN Transistor Puzzle: -0.4V?

  • donpacino
  • · Replies 5 ·
Replies
5

Where can I buy a flexible capacitive touch surface?

  • borshluger
  • · Replies 3 ·
Replies
3

AC Signals - Radians and Degrees? Why do we use both?

  • tomizzo
  • · Replies 30 ·
2
Replies
30

Coulomb's law and Electric field intensity problem

  • rizwanibn
  • · Replies 8 ·
Replies
8

Transformers and Electric power Ltspice

  • ernd59
  • · Replies 4 ·
Replies
4

Why does source current reverse in single phase rectifier with source impedance?

  • nitishsharmabit
  • · Replies 2 ·
Replies
2

How can I fine tune an ultrasonic frequency?

  • K_Mitchell
  • · Replies 18 ·
Replies
18

What is the neutral wire and why do we need it?

  • Russell Ensslin
  • · Replies 45 ·
2
Replies
45
Replies
14

Equipotential Apparatus on the cheap?

  • mishima
  • · Replies 16 ·
Replies
16

Why does an inductor resist changes to current?

  • Curious146
  • · Replies 25 ·
Replies
25
Replies
6

Does an SN754410NE H Brdige need a microcontroller?

  • aquitaine
  • · Replies 5 ·
Replies
5

Calculating current in an unbalanced wheatstone bridge?

  • The-Steve
  • · Replies 5 ·
Replies
5

Can Multisim Import and Process Sound Files Through a Circuit?

  • houlahound
  • · Replies 5 ·
Replies
5

How can I deactivate the shutter button?

  • Serhatee
  • · Replies 17 ·
Replies
17

Is it possible to increase the amps within/along a circuit?

  • ptownbro
  • · Replies 13 ·
Replies
13

Magnetic field intensity and density

  • nitishsharmabit
  • · Replies 5 ·
Replies
5

How to get device phase in FDTD solution?

  • Marvin
  • · Replies 2 ·
Replies
2

Double check apparent power definition

  • tim9000
  • · Replies 7 ·
Replies
7

How to replicate electric blanket? (Project)

  • KrisEE
  • · Replies 20 ·
Replies
20

Does an AC current have to cross zero?

  • JorisL
  • · Replies 6 ·
Replies
6

Why does current differ between input and output in DC-DC converters?

  • PhiowPhi
  • · Replies 28 ·
Replies
28

Can Piezoelectric Plates Effectively Charge a Phone?

  • nar5i
  • · Replies 1 ·
Replies
1

Slip rings, commutator, dc motor

  • Salvador
  • · Replies 2 ·
Replies
2

Is the Delta current <30 degrees or not?

  • tim9000
  • · Replies 3 ·
Replies
3

5v to ≈70v dc-dc converter in the 1w range?

  • OtherRealm
  • · Replies 5 ·
Replies
5

AC Waveform Question: Deriving Vrms from Vpk - Fawzi

  • Fawzi Da
  • · Replies 2 ·
Replies
2

What is the advantage of using a differential probe for power calculation?

  • EE4life
  • · Replies 15 ·
Replies
15

Charge placed in a cavity in a conductor

  • Ajay.makhecha
  • · Replies 4 ·
Replies
4
Replies
2

Why does voltage increase when batteries are connected in series?

  • aphyx
  • · Replies 35 ·
2
Replies
35

Thermostatically Controlled Meteor Camera

  • AJohn
  • · Replies 7 ·
Replies
7

Designing an Electromagnetic Levitation System: Challenges and Considerations

  • pioneerboy
  • · Replies 3 ·
Replies
3

Magnetic Induction on Wireless Earbuds

  • KG21
  • · Replies 4 ·
Replies
4

Trying to understand the finer points of current flow

  • Scott Pratz
  • · Replies 5 ·
Replies
5

I understanding how skin effect works

  • NCC74656
  • · Replies 11 ·
Replies
11

Identify electrical engineering textbook from circuit diagram

  • Vigan
  • · Replies 7 ·
Replies
7

Solenoid Suppressor Module: What is it and How Does it Work?

  • Ferny Kajar
  • · Replies 1 ·
Replies
1

Voltage drop calculations for CCVT's and Current TF's?

  • this1ssteve
  • · Replies 3 ·
Replies
3

How can you figure out the temperature of electricity?

  • neuindus
  • · Replies 2 ·
Replies
2

Logitech X-530 - AM radio frequency

  • konrado5
  • · Replies 4 ·
Replies
4

How to wire up Piezo touch sensitive switch?

  • Ben Whittle
  • · Replies 5 ·
Replies
5

Making Steel Wheels Magnetic for Model Train Track

  • Mike Gaffer
  • · Replies 8 ·
Replies
8

Increase Torque on 10 HP Motor Without RPM Change

  • rickcjmac
  • · Replies 13 ·
Replies
13

Magnetic circuits and Magnetization

  • Fededevi
  • · Replies 8 ·
Replies
8

Earthing and Grounding or Protective Earthing

  • neduet
  • · Replies 2 ·
Replies
2

How to measure the mode of a FET

  • jaydnul
  • · Replies 10 ·
Replies
10

Detecting Lasers with photodiodes---Circuit layout?

  • Paradox101
  • · Replies 11 ·
Replies
11

Superconducting Capacitor for Energy Storage?

  • zmorris
  • · Replies 4 ·
Replies
4

Using a computer fan as a wind turbine to charge a smartphone

  • Nexo
  • · Replies 12 ·
Replies
12

Can a Zener Diode with a Breakdown Voltage of 1V be Fabricated?

  • Hossein Roshan
  • · Replies 9 ·
Replies
9

Where do quartz crystals in microcontrollers get mechanical vibrations?

  • ujjval rathod
  • · Replies 3 ·
Replies
3

Why rewrite cosines as sines in AC circuit analysis

  • icesalmon
  • · Replies 1 ·
Replies
1

Are the E and H field not orthogonal near the antenna?

  • SirR3D
  • · Replies 9 ·
Replies
9

Resistance between two point voltages on infinite plane

  • Roger44
  • · Replies 37 ·
2
Replies
37