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Andy aka
  • Member for 9 years, 3 months
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143 votes
Accepted

What is the reason that the value "47" is so popular in electrical engineering?

93 votes

Why do banana plugs need these holes?

86 votes
Accepted

Reasons not to use a 741 op-amp?

81 votes

Why is the Digital 0 not 0V in computer systems?

68 votes

Is there a technical reason why most touch screens use glass rather than plastic?

60 votes

Ceramic caps vs electrolytic. What are the tangible differences in use?

56 votes
Accepted

Why is sine wave preferred over other waveforms?

56 votes
Accepted

Is it ok to 'snake' the flow of my schematic?

55 votes
Accepted

Is ground connection in home electrical system really necessary?

53 votes

Moisture Trapped in IP66 Enclosure

49 votes

How did old television screens with a light grey phosphor create the darker contrast parts of the display?

49 votes

What is the purpose of the emitter resistor in a common emitter amplifier?

49 votes
Accepted

Two resistors in series

46 votes
Accepted

Optical audio transmitter can't handle speech

44 votes
Accepted

How to make a dummy load of 1000W - 2000W?

43 votes
Accepted

RF Energy Harvesting

43 votes
Accepted

Why does 1/4 wavelength have a ground plane and 1/2 wavelength needs none?

43 votes
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Why are there 3.15A fuses?

42 votes

Why do transformers use so many turns?

40 votes
Accepted

Why recommend tantalum over ceramic capacitor for voltage regulator?

40 votes

What does 232 signify in the RS232 standard?

39 votes
Accepted

Where did the value of 0.1uF for bypass capacitors come from?

38 votes
Accepted

Why is electricity consumption billed in watts and not amperes?

38 votes

What is a sine wave?

37 votes
Accepted

What does a Bode plot represent and what is a pole and zero of a Bode plot?

37 votes

How can a one million megohm resistor be useful?

36 votes

How can I measure the RPM of a Frisbee?

36 votes
Accepted

Can people act like antennas?

35 votes

How are unbalanced coaxial cables used for broadcasting TV signals without any problems?

35 votes

Why is root mean square used when calculating average power, and not simply the average of voltage/current?

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