How memory Card Works in your devices ? what is principle of operation?

Above picture shows the pin out of a memory card which we use in our digital devices. here is a short points about the concept of memory card.
Pin no 1- named as DATA2 but it sends data signal 1
pin no 2- named as DATA3 but it sends data signal 2
pin no 3- CMD I/O means sends commands for Input and output .
pin no 4- named as GND and supplies ground or negative voltage to this component.
pin no 5-named as VDD and supplies positive voltage to this component
pin no 6- Named as CLK and provides clock signal to card to execute the instruction to the card for output
pin no 7- named as GND and supplies negative voltage
pin no 8- Named as DATA0 and provides path for data signal 0
pin no 9- Named as DATA1 and provides path for the Data singal 1

how to calculate your electricity bill on your fingure tips? and list of appliances and energy consumed by them.

This chart represents the energy consumption in our homes by appliaces and this is limited list of home appliaces you can find more or if you need the rating of any thing just post the comment you will soon recieve a short meassage by our experts.
This chart shows the appliance name, the power rating in watts, the operating hours per day and last column contains the number of units that will be consumed by that appliance in the whole month from this chart you can easily calculte the electricity bill and you can compare with your orgional electricity bill which is provided by you electric suply company.

Household Appliance test whether they are good or bad

This test will provide you that whether your house appliances and devices are good or bad this is basic test and it can be done at home easily, just you need some knowledge about the basic things and a analog multimeter and have some idea about the usage of a multimeter .

Li-Ion Battery and its internal Working see here

The Evolution Of Light bulb. and causes of evolution of Bulb.

Working of capacitor Bank and booster ckt . very intresting

How LED Glows and How it works ? must see

How Relay Works ? see here very intresting information

How Air Conditioner Works ? See Here

Fast Progress in nulear power production. Very intresting and informative must see

What is AUTO Transformer ?

AUTO Transformer is an electrical device which step up or step down automatically . This transformer is different from other type of transformer and that difference is that common transformers are magnetically coupled and electrical isolated while auto transformers are electrically coupled.

A good example of auto tranformers is in your home devices for example your emergrncy LED light charger  it uses auto transformer which is electrically coupled if you plug that light in sochet with 220v and touch any part of circuit or even LED you will feel a big shock like 220vac.

What is OPTO Coupler ? How it works ? What are its advantages ? get answer all of these questions here .

Transistor Transistor Logic (TTL) IC Family

Types of IC Packaging

What is inside of a Luquid Crystal Display LCD?

What is inside a Capacitor ? How it is constructed?

Bipolar Junction Transistor Pin Configuration

What is Oil Circuit breaker ?

What is inside the airplanes's cockpit ?

What is inside mobile phone PCB ? How it Works ? see here

Three way switch connections

In which way Laser beam welding works ?

HOW HYDEROELECTRIC POWER PLANT WORKS ?

How to Construct a Photosensor what are its parts ?? see here

What is difference between microprocessor and microcontroller ?? see very intresting answer here.

The difference between microprocessor and microcontroller is only that microprocessor is a brain and it needs external things to perform work  like memory and I/O.

But microcontroller contains all of these things inside a single chip memory, I/O

This s the difference between Microprocessor and Microcontroller 

How speaker work see in this picture

How many watts do you need for a generator how can you find your requirements of watts

What is inside IC . see its internal structure

What is difference between wattsand volt-ampere see here

Some Abriviation Usually used in Control ckts

This is What How Touch Screens works in your Devices Very intresting

How to Differenciae bewteen orgional and copy of charger

How can we generate electricity from waste things see here

Different types of transformers

How Induction motor works

Make electromagnet at home easily within 5 Minutes

How Nuclear Power plant works

How automotive relay works and complete components are shown here

A schematic of dual-speed, 3-phase, squirrel cage and single winding

This is what how Router works

Basic Components of Servomotor

Types of Towers according to Voltage rating

 

Why Transformer rating is not in KVA its always measured in KW

Electric Motor family and complete classification

Electric Car with Diagram . This is big step from Electrical engineers in the world which make us confidant that proud to be electrical engineer

How PLC works it is shown here

important factors of Power calculation , how it can be calculated

Why Voltage DIP take place in Transmission and sistribution reasons are shown in this picture