The capacitor

Well in this project I want to explain the function and use basics of the capacitor.

What you need to know about capacitors is that they get things going, and they do so by storing energy and bursting it out when needed, some of the electronic stuff you use like the flash of a camera, your AC, types of light bulbs, electric cars, and a lot,       A LOT of the electronic stuff you use have capacitors in them.

Now I'm going to demonstrate the use of a capacitor in a basic circuit like the one created for turning on the led, doing the same thing and adding this new variable to make it function.

This time around we’re using a breadboard to help us in the construction of the circuit.

Bredboard or protoboard wire

A LED light

Resistances

A generic phone charger

Capacitor (4700µF 16V)

A multimeter or VOM 

This project is kind of the same as the first one, just this time I'm using a breadboard to help me have things in order, as well as our new pal the capacitor. 

And like the last project, we need to start by getting the value of the needed resistance in order to turn the led light on, remember only this time we are using a capacitor which takes place in replacing the power given by the battery. 

To do so, we need to charge  the capacitor, I'm doing this with a 12v generic phone charger which will transfer the energy to the capacitor, energy that the capacitor will store. Capacitors, by the way, are kind of batteries in which interior energy is stored to, then, be burst out and used in whatever its needed within the circuit. There are different kinds of capacitors and they differ from batteries in the way of storing the energy (they store it in air or oil mediums) and the way they get out the energy, more rapidly than batteries do.

Just be cautious and remember to charge it properly, the negative outlet of the charger to the negative portion of the capacitor (the one with a white line pointing down and zeros) and the positive outlet to the positive one or otherwise it will explode (it really does). To verify if the capacitor is charged (and what could happen to you if you touch it while it is) you can put both of the capacitor's wires on the metal portion of any scissors (the ones with plastic handles), and if this creates some sparkles, then you're doing it right.

Now with 12v stored in the capacitor and the led's amperage, you can obtain the resistance needed to turn the led on. Remember the Ohm Law (I=V/R)

And that's it! now you know how to make a basic circuit for turning on a led with a capacitor.