helloworld922's user avatar
helloworld922's user avatar
helloworld922's user avatar
helloworld922
  • Member for 10 years, 7 months
  • Last seen more than a week ago
46 votes

How are current and voltage related to torque and speed of a brushless motor?

37 votes
Accepted

accounting for LED resistance

36 votes
Accepted

Why are these readings violating ohm's law? (Are they?)

35 votes
Accepted

Why route air gaps for voltage isolation on PCBs?

34 votes
Accepted

When to use pull-down vs. pull-up resistors

33 votes
Accepted

Choosing resistor values for inverting amplifier and why?

26 votes
Accepted

How can I tell the size of a barrel power connector?

23 votes

What is the smallest and simplest seed for a random number generator?

19 votes

Why is RAM not put on the CPU chip?

19 votes

What is the purpose of a resistor in the feedback path of a unity gain buffer?

17 votes
Accepted

Rotary Encoder Detents

16 votes

Half-wave rectifier and RMS value

16 votes
Accepted

What's the importance of source impedance termination?

15 votes
Accepted

Why do characteristic impedances matter only when traces are longer than half a wavelength?

14 votes

Are the noise floor and signal to noise ratio same things?

14 votes
Accepted

Is a Schottky diode appropriate for reverse polarity protection?

13 votes
Accepted

What do the arrows in transistor symbols point to (and from)?

12 votes

How to Measure Power Consumption on Extremely Low Power Devices?

12 votes

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

12 votes
Accepted

How should unused I/O pins be configured on ATMega328P for lowest power consumption?

12 votes

3 phase computer chip

12 votes

Why would one drive LEDs with a common emitter?

11 votes
Accepted

Should electrolytic capacitors get hot?

11 votes

Open and Short Circuit questions

9 votes
Accepted

Why is it safer to place a switch on the positive side of a voltage source?

9 votes

Why don't power meters measure volt-amps

9 votes

How do I find the resistance between three terminals?

9 votes
Accepted

Will it hurt a non-powered power supply to see 12/24V on the output?

8 votes
Accepted

can I use any OP AMP as buffer

8 votes

Power's relationship to Resistance

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