Useful tips for everyday
How do I choose the right potentiometer? In general, you want the potentiometer to be as small as possible without putting too much of a…
Can you reprogram RFID tags? As RFID tags have an internal microchip this can be programmed to either accept or reject re-write requests, this helps…
How do you isolate a car stereo? You can usually isolate the head unit as the problem by disconnecting the RCA cables from the amplifier…
What are headphone wires made of? Headphone cables and jacks are made from materials such as copper, silver, gold, or rhodium. Connectors may be solid…
How do we sense current transformer? Selecting Current. A resistor can be used to sense current by measuring the voltage drop across the resistor. The…
How do you lower the tolerance of a resistor? A potentiometer or rheostat is a resistor whose value you can manually change. A useful trick…
Why FM is more efficient than AM? With FM, the frequency (the number of times each second that the current changes direction) of the carrier…
How does a 3×4 keypad work? Punch in your secret key (or Jenny’s number) into this numeric matrix keypad. This keypad has 12 buttons, arranged…
What is the electrical symbol for current? I Symbol. The conventional symbol for current is I, which originates from the French phrase intensité du courant,…
How does Mosfet control voltage? In Figure 5 , MOSFETs have also been used as voltage controlled resistors. Because most MOSFETs today tend to be…