Tagged Questions
2
votes
1answer
230 views
Why high voltage from TV flyback shocks you without the need to complete a circuit?
Assuming the TV is plugged into an isolation transformer (although I think there is already a small transformer onboard), then ground is not part of the secondary side. Yet, high voltage from flyback ...
4
votes
1answer
281 views
Inductive “kick” and possible dangerous experiment
So I have this unmarked, unknown transformer (probably from a microwave oven so it is pretty beefy) and I thought that a safe way to determine the primary from the secondary windings would be to put 1 ...
5
votes
3answers
211 views
How large would be the transformer for converting a lightning into useful electricity?
My dad asked me the oh-so-famous question yesterday:
Why can't we harness the electricity from lighting?
After explaining to him the impracticalities of this as far as the amount of energy in ...
4
votes
2answers
569 views
Can we remove the neutral wire?
If we have the connection shown below (star connection of the secondary part of a TX), the load per each phase is equivalent (balanced load), then the vector sum of ...
3
votes
1answer
387 views
Simple spark gap for ignition - Looks correct?
I was wanting to build a simple fireworks igniter (single line, 1m cable to actual firework)
Here is my current circuit design:
I suppose after the switch is pushed, it will send 9+9 (18V) to the ...
5
votes
3answers
1k views
What happens if I connect a transformer in reverse?
I was thinking the other day. A transformer is just two coils, right? There is no polarisation or anything else fancy? The ratio of the number of windings on the input to the number of windings to the ...
