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  • Nagpur, India
8 answers
61 votes
166k views
36 bookmarks
Why is high input impedance good?
8 answers
40 votes
10k views
4 bookmarks
Why do utility companies supply at a frequency of either 50/60 Hz?
4 answers
19 votes
28k views
7 bookmarks
How do I construct a SPICE model from a data-sheet?
1 answers
18 votes
11k views
8 bookmarks
How do these new-fangled phone chargers achieve step-down?
7 answers
10 votes
14k views
If the energy meter sees a reactive load, will it register a lower reading?
2 answers
8 votes
12k views
How to calculate suitable dummy load for a power-supply?
2 answers
8 votes
1k views
Does the capacitor dielectric experience heating due to rapid charge/discharge cycles?
3 answers
7 votes
2k views
Why does the ionosphere reflect HF but allow VHF signals to penetrate through?
2 answers
6 votes
1k views
How does a wind farm prevent the fastest spinning turbine from driving the slowest one?
3 answers
6 votes
352 views
What difference does it make to an appliance whether the supply is sinusoidal, or any other shape?
4 answers
5 votes
12k views
1 bookmarks
How can an LED series continue to work after an LED goes bad?
5 answers
5 votes
33k views
2 bookmarks
Why do electronic circuits need their power supply to be DC, or rectified AC?
4 answers
5 votes
4k views
What kind of capacitor could build up, and maintain a charge acquired from lightning?
4 answers
5 votes
623 views
1 bookmarks
Will a faster rate of change of flux improve electricity generation?
4 answers
4 votes
21k views
What should attaching another magnet to the back of the speaker magnet do?
2 answers
4 votes
2k views
How does a wind turbine protect the bank from a reversal in polarity when spin direction is reversed?
3 answers
4 votes
5k views
Is this the right way to mount a 2N3055 or any TO-3 form on a heat-sink?
5 answers
4 votes
1k views
Does CW or SSB consume more power?
1 answers
4 votes
200 views
What frequency/band lends itself to interstellar communication?
2 answers
3 votes
470 views
1 bookmarks
How do I, as a consumer, gain or lose when the utility company line voltage varies from rated value?
3 answers
3 votes
6k views
Do transformers use Aluminium windings?
2 answers
3 votes
2k views
Can the top off a coke can serve as a heat-sink?
3 answers
3 votes
3k views
1 bookmarks
What advantages to permeability tuning as against capacitive tuning?
1 answers
3 votes
1k views
What is the risk in unplugging a USB device without disconnecting it in the OS?
1 answers
3 votes
1k views
Do diamagnetic material exhibit induction?
2 answers
2 votes
1k views
What are the ratings of vintage Selenium Rectifier B20/16-2,4?
3 answers
2 votes
300 views
Can a reed switch be used instead of a flyback diode?
3 answers
2 votes
1k views
How to ground a vintage device that was powered without a ground?
2 answers
2 votes
2k views
Would replacing a resistor by another one of identical value but higher power rating affect the working of a circuit?
1 answers
2 votes
3k views
How do I test a circuit without an oscilloscope?