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hacktastical
  • Member for 2 years, 10 months
  • Last seen this week
  • California
55 votes

Why is electricity consumption billed in watts and not amperes?

44 votes
Accepted

Is there a reason why we don’t supply power to a 2.5 mm or 3.5 mm jack?

41 votes
Accepted

What is the lowest level of CPU programming above transistors?

41 votes
Accepted

What is the purpose of this device?

38 votes

Scam? Does having this capacitor wired as shown provide any surge protection?

35 votes

Why is this meter giving different readings depending on its orientation?

32 votes
Accepted

Why are off grid solar setups only 12, 24, 48 VDC?

31 votes

Do I still need a resistor in this LED series design?

29 votes
Accepted

What is the difference between CPU transistors and generic ones?

27 votes
Accepted

Why isn't the current split between the transistor and the LED in this NOT transistor circuit?

27 votes

Achieving bit-perfect rendering of audio CDs

27 votes

How do rechargeable 1.5 V batteries work?

25 votes
Accepted

Why do logic gates need multiple MOSFETs?

25 votes
Accepted

Professor said no current flows to ground

23 votes
Accepted

ATmega328P reading DIP switches using the lowest possible power

22 votes
Accepted

Why are the outputs of these gates tied together in the Apollo Guidance Computer?

22 votes

Does the voltage difference have an effect on the electrons' speed?

21 votes
Accepted

Why are PCIE's coupling capacitors so large

20 votes
Accepted

Cable standard for data and power

19 votes

Need for Almost Empty and Almost Full flags in a FIFO buffer

18 votes

White LED doesn't light up when a red LED is parallel to it

18 votes

High voltage electricity transport

17 votes
Accepted

How does a non-designer understand a chipset's functionality?

17 votes
Accepted

Why is the stator coil wrapped with layers of metal disks instead of a whole metal block?

15 votes

How can electricity be positive when electrons are negative?

15 votes

LED in small Raspberry Pi circuit glows when it is meant to be off

15 votes
Accepted

How to drive 700mA LED cheaply?

14 votes

Why are cables rated for current not power?

14 votes
Accepted

Does the DC component of any signal also carry information?

14 votes
Accepted

Interview FPGA question about what I would power first

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