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Kurt Hikes
  • Member for 2 years, 1 month
  • Last seen more than a week ago
6 votes
1 answer
1k views

What is the symbol for this very site? What type of diode?

2 votes
2 answers
191 views

Why aren't aluminum and nitrogen used as dopants in semiconductors, chips, etc.?

1 vote
3 answers
326 views

How would superconducting circuits save a lot of power in a small electric car?

1 vote
2 answers
74 views

At what distance(s), approximately, are high-voltage DC (HVDC) power lines more efficient than AC lines?

0 votes
2 answers
109 views

How do you create an isolated, positive voltage?

0 votes
2 answers
84 views

An AC generator can 'lock up' if its timing is off? [closed]

0 votes
1 answer
111 views

What is the actual direction of real current in an A.C. generator? From the North pole to the South?

0 votes
3 answers
72 views

How can you tell, remotely, if someone put their SIM card in a new phone? [closed]

0 votes
2 answers
139 views

How, exactly, does the 'input signal' wave(s) modify the carrier-wave of a radio signal? [closed]

0 votes
2 answers
106 views

If antennae work best at full, half or quarter wavelengths, why don't received signals at 1, 1/2 and 1/4 wavelengths interfere with each other?

0 votes
1 answer
110 views

Does satellite radio use AM or FM or both? [closed]

0 votes
2 answers
172 views

How many newtons are there in one coulomb of charge?

0 votes
1 answer
48 views

What is 'mis-registration' and 'mis-collimation' of television signals?

0 votes
1 answer
140 views

Why are low band gap semiconductors (like silicon) not ideal for most solar cells? Are their atoms ionized by higher-energy photons?

-1 votes
2 answers
78 views

Why did cars switch from infrared key fobs to radio-wave key fobs? [closed]

-8 votes
2 answers
337 views

Can a 'superconductor battery' , theoretically at least, last forever? Even if it is being used? [closed]