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Bookmark or Share- current - Why is it safer to place a switch on the positive side of a ...This is for safety. Since the neutral (white wire) is referenced to ground, it should not have any potential relative to someone touching it. If the switch was placed to break the circuit on the neutral wire, it would mean that there is potential on a plugged in device and some length of neutral wire up to the switch even when it is turned off.
- What destroys a LED in the reverse direction?However there are certain types of diodes like zener diodes which are made to break down in reverse at a specific voltage, which makes them useful as voltage references and limiters. For the 12v case on a 5v LED in theory using a limiting resistor to reduce the current (and drop the reverse bias voltage anyways) shouldn't, in theory, destroy ...
- standard - Rules and guidelines for drawing good schematics ...Break up the schematic into logical blocks of circuits and stick them to separate pages as necessary. Leave enough space between pins Many premade schematic symbols pack the device pins as tightly as possible. While this minimizes the area of a symbol, it also makes the circuit more difficult to read as you have connections converging from ...
- How does a fuse blow at its current rating, regardless of voltage?When the break is small, you can get an arc (especially if the load is inductive), which is extinguished soon after because 1) the instantaneous current reaches zero (since this is AC) and by the time the voltage comes back to peak, the gap is wide enough for an arc. So, the higher voltage, the wider gap there must be.
- Difference between cutoff frequency and break frequencyBreak frequency is sometimes used for the corner frequency of a 'broken' integrator, that is an integrator with an extra R in series with the C, to 'break' its slope back to flat at a high enough frequency. It is also used when measuring noise processes, any point where the spectrum slope changes tends to get called a break frequency.
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