### device:

Electrical device
* Every electrical device emits electromagnetic energy.
* Most electrical devices consume energy.
* Most electrical devices have circuits
  - their power consumption rated in watts
  - require the flow of a current
* Most electrical devices use basic components
* are devices.
* show no signs of overheating.
+ Electricity, Electric current:
  * It is possible to connect an electrical device to a circuit so that electrical current will flow through a device. This current will make the device do something that we want it to do. Electrical devices can be very simple. For example, in a light bulb, current flows through a special wire called a filament, which makes it glow. Electrical devices can also be very complicated. Electricity can be used to drive an electric motor inside a tool like a drill or a pencil sharpener. Electricity is also used to power modern electronic devices, including telephones, computers, and televisions.

### device | electrical device:

Attenuator
* are electrical devices
  - electronic components
  - products
* have frequency response.
* is an electrical device

### device | electrical device:

Capacitor
* All capacitors are Silver Mica.
* All capacitors have high working voltages and long leads, ideal for hand wired circuits
  - two connections , or leads
* Most capacitors are the more reliable ceramic disc type
  - have micro Farad ratings
* Solves all kinds of capacitor network problems.
* Some capacitors have several different constants mixed and used as the dielectric
  - use the same method of showing the value by colour code.
  * The type of capacitor used depends on the application. Capacitors come in many sizes. They can be as small as an ant or as large as a dustbin.
  * All capacitors have two connections, or leads. Most kinds of capacitors can be changed around easily by someone who has basic skills in electronics
* act to block direct currents, but they allow alternating current to pass.
* also are simple filter elements
  - have voltage ratings
  - leak
* are an electrical charge storage device
  - common components in utility, industrial, and commercial power systems
  - devices that store energy
* are devices which have metal plates separated by an insulator
  - store electric charge
* are electrical components which store charge
  - electronic components
  - essential parts of nearly all electrical circuits
  - gadets that store energy until a large potential energy has been stored
  - in microfarads
  - less expense than synchronous condensers
  - like batteries
  - nonconductors that are used to store electrical power
  - oil filled rolled polyethylene in a pvc pipe
* are part of circuits
  - distributors
  - passive devices that store and release electrons
  - useful because of their ability to store electric energy
* arrays combine multiple capacitor units into one single structure.
* can also eliminate ripples.
* come in all shapes and sizes and are usually marked with their value
* connected in parallel add together their respective capacitance algebraically.
* do just the opposite.
* have A. a voltage rating.
* have a maximum voltage rating , much like resistors have a maximum power rating
  - strip on the neg side
  - capacitve reactance which is the opposition to current flow provided by a capacitor
  - high working voltages for dependable radio operation and long life
  - lower losses than synchronous condensers
  - the opposite effect and can compensate for the inductive motor windings
  - values commonly indexed in Microfarads
* help maintain voltage levels during peak power demands.
* hold the electronic signals for the data.
  - the ratio of charge to the potential difference
* quiet the radio frequency noise that the motors generate.
* reduce to short circuits at high frequency.
* store electric potential, much the same way as a rechargeable battery does
  - electrical energy
* tend to be much less temperature and time variant than piezoresistors.
* usually have two legs.