Description of Electronics Items Part 1

     Switch 

A switch is Devises to connect or disconnect any circuit diagram. Basically, Switch is used Prevent/Control Electrical Flow. 

Type of Switch:-

1.  On/Off

2.  Push

3.  Sliding

4.  Rotary

5.  Relay

All Type in single way of Switch                             

·       One Way

·       Two Way(Multi-way)

All type of Multiway Switch

·       Single Channel

·       Double Channel

 Resistance

A material having resistance is called Resistance.A factor in any conductor which resists the flow of electricity.All the good conductor having resistance either less or high, to decrease.“Unit to measure resistance Ω (Ohm)”

Type of Resistance

1)  Fixed(Constance

2)  Variable

3)  Preset

4)  TC(Tone Control)

5)  VC(Volume Control)

Conductor  ---->More length àMore Ω

Conductor  ---->Less LengthàLess Ω

       Conductor  ----> More Thicknessà Ω 

       Conductor  ---->Less Thicknessà Ω

Type of Resistance modern fixed value resistors 

1. Carbon film Resistor=>Made of carbon dust or graphite paste.It has Low wattage values.
2. Film or Cermet Resistor=>Made of conductive metal oxide paste.It has Very low wattage values.
3. Wire Wound Resistor=>Made Metallic bodies for heat sink maintain. It has wattage ratings.
4. Semiconductor Resistor=> Semiconductor Resistor – High frequency/precision surface-mount thin film technology.

Color Coding of Resistance and find the value of Resistance

Color         value          Rule

Black           0            

Brown         1               1^st coloràput value

Red            2                (Black should not first color)

Orange       3                 2^nd coloràput value

Yellow        4                 3^rd color à(0-9)à(x10color)

Green        5                  Golden x.01

Blue          6                  Silver  x.01

Violet        7                  4^th color   Goldenà+-10+

Gray         8                  Average Silver -à +-5+

White        9                 Good No color à+-20+Bad

             Note:= 1000Ω=1k Ω 

                        1000000 Ω =1m Ω

Transformer

  In the Electrical device, Transformer is mainly used to transfer electrical energy from other circuits to another electric circuit, without changing the frequency. In another word, We tell it takes electricity of one voltage and change into another Voltage. Normally Transformer device that is used increase or decrease voltage in the electrical circuit.

A Transformer basically works like transfers energy between two or more circuits. A Transformer is electronic devices to use change voltage of an AC Supply. A device to increase voltage and decrease voltage and ampere.

 

Type of Transformer

1.  Step Down

ü  Decrease the voltage

ü  No of primary>no of secondary

2.  Step Up

ü Increase Voltage

ü No of primary<no of secondary

3.  Auto

üIncrease

üDecrease

                     

Transistor

 

 

Transistor types

Chip

Continue To Description of Electronic Items part 2 ....................