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Electrical Engineering
Andy aka
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8,627 Answers

newest activity votes
110
What is the reason that the value “47” is so popular in electrical engineering?
May 2 '13 at 21:47
59
Is there a technical reason why most touch screens use glass rather than plastic?
May 9 '16 at 8:17
58
Reasons not to use a 741 op-amp?
May 10 '17 at 9:52
53
Why is sine wave preferred over other waveforms?
Feb 5 '15 at 12:44
47
Moisture Trapped in IP66 Enclosure
Aug 1 at 17:27
46
Two resistors in series
Nov 16 '16 at 18:05
45
Optical audio transmitter can't handle speech
Feb 1 at 19:24
43
Ceramic caps vs electrolytic. What are the tangible differences in use?
May 6 '16 at 10:01
43
How to make a dummy load of 1000W - 2000W?
Nov 3 '15 at 9:07
40
Why are there 3.15A fuses?
Jul 19 '16 at 7:35
40
RF Energy Harvesting
Jun 12 '15 at 9:06
38
What is a sine wave?
May 23 at 12:02
38
What does 232 signify in the RS232 standard?
Feb 1 '17 at 11:58
37
Why do transformers use so many turns?
Feb 4 '17 at 20:23
37
How can a one million megohm resistor be useful?
Dec 11 '16 at 12:36
36
How can I measure the RPM of a Frisbee?
Jun 18 '14 at 19:39
35
Can people act like antennas?
Apr 18 '16 at 7:52
34
Where did the value of 0.1uF for bypass capacitors come from?
May 26 '15 at 14:04
33
Why is root mean square used when calculating average power, and not simply the average of voltage/current?
Dec 7 '16 at 10:07
32
What is the maximum voltage that silicon can handle?
Sep 11 at 16:46
31
5V DC over Coax
Aug 31 '16 at 11:42
30
Why are RF components and cables still so large?
Apr 11 '16 at 8:54
29
Is it possible to send multiple data bits on a single wire at once?
Sep 10 at 18:55
28
Why is digital serial transmission used everywhere? i.e. SATA, PCIe, USB
Aug 30 at 8:56
28
Why do we use an opamp to produce a voltage output above 1V in this circuit?
Apr 23 at 10:48
28
Is it OK to put LEDs in parallel?
Jun 9 '15 at 8:14
27
Why are LEDs in my home unaffected by voltage drop?
Nov 7 '16 at 8:36
27
Does a DC toy motor emit AC when you spin it?
Mar 23 '16 at 14:03
27
Why can sticking fingers in an electric outlet kill you?
Dec 19 '15 at 18:58
27
LC circuit, bigger L than C, or bigger C than L?
Nov 16 '15 at 8:23
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