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Electrical Engineering
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user57037
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899 Answers

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68 votes

Why do transformers use so many turns?

36 votes
Accepted

Why do some switching regulator require tantalum or electrolytic capacitors instead of ceramic?

31 votes
Accepted

Why don't I need a resistance when testing a light bulb circuit in a breadboard?

31 votes
Accepted

Should I connect RXD to TXD and vice versa?

29 votes
Accepted

Reverse polarity protection circuits all seem wrong

26 votes

How are "long push buttons" done? (For example, a "factory reset button" that has to be pushed for five seconds.)

25 votes

Where are the cathode and anode of this diode?

25 votes
Accepted

Can I "integrate" the data from an accelerometer to record a motion trajectory?

24 votes
Accepted

A 200-mile-long neutral busbar doesn't sound real

23 votes
Accepted

Is there a convention for documenting a schematic with notes?

23 votes

Why does a circuit breaker voltage rating differ between AC and DC?

22 votes

Why are the power transmission/distribution systems AC and not DC?

22 votes
Accepted

How to solder an SMD component with a "pad" on the bottom?

20 votes

Electrical cabinet - cooling fan on top or bottom?

18 votes

EEPROM being both "programmable" and "read-only"

18 votes
Accepted

Do low-ESR ceramic capacitors in the uF-range exist?

16 votes

If Infrared not visible, why the red LEDs?

16 votes

Ferrite bead selection

15 votes
Accepted

How does power remain constant when powering devices at different voltages?

15 votes
Accepted

Can I use multiple 18650 batteries in parallel with a standard MicroUSB 3.7V charger board?

14 votes
Accepted

Figuring out pin 1 on this IC

14 votes

What makes the stack concept useful in embedded programming?

13 votes

Would retro-fitting a DC motor as the blower motor in a residential furnace be more efficient than existing 1/2 hp AC motor?

13 votes

Why do relays, solenoids, and motors have a DC voltage across them if they're inductors?

13 votes
Accepted

Is forcing power through a faulting board a good diagnostic tool?

13 votes
Accepted

How to shunt 1500 joules when voltage exceeds 75 VDC

13 votes

Removing hot glue

13 votes
Accepted

Why are RMS values considered DC equivalent?

12 votes
Accepted

Is this a good idea to separate Grounds via ferrite beads?

12 votes

Are all linear regulators adjustable?

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