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Quiz on capacitors
Try this one for size we are always talking about then m and without cheating see wat you get .
Me ? 10/10 of course
HowStuffWorks "Capacitor Quiz"
Try this one for size we are always talking about then m and without cheating see wat you get .
Me ? 10/10 of course
HowStuffWorks "Capacitor Quiz"
9/10,
Considering I learnt most of this from random places over my short years, i'm fairly suprised at this.
I take exception to two of the questions. One, air capacitors are no longer used in tuned circuits in radios and haven't been in years. Two, lightning is an electrical discharge, not an example of a capacitor.
Yep I know about the air ones but I wonder how many don't even know they existed as for the lightning well technically I suppose the cloud/s are the capacitor in a sense.
having said that there are many enthusiasts that still work with the older type radio sets that sue those type of caps.
In reality one can act as a capacitor oneself and I think and I stand to be corrected that a lot of touch screens work on the principle that body mass alters the capacitance in the area touched as I know I built some stud finding device years ago that used that principle.
I haven't seen an air gap variable capacitor in over 20 years (and what I saw then was really ancient). I have seen air gap capacitors on radio antennas, especially for high power transmitting, since then.
9/10 for me. But, I also take exception to the lightning answer. I actually believe snow is closer to being analogous to a capacitor than lightning. I liken snow building during a storm as the capacitor charging, then the snow melting as the capacitor discharging.
The quiz was actually less than basic, most of the questions were actually irrelevant.