How Radio Work?
Radio is a wide and important medium of entertainment and communication. We can hear news, song, music, drama, discussion, debate and the advertisements of industrial…
Physics
Speaker and its Functions
Speaker does just the opposite task of the microphone. The speaker converts the electric signal of the microphone into the corresponding sound wave. Speakers are…
Microphone and its Functions
Microphone and Speaker Microphone is orally known as the mic. In a big meeting or program, a speaker delivers his speech in front of an…
What is Integrated Circuit?
Integrated circuit is commonly known as IC. IC is used in most of the electronic appliances starting from computer, mobile phone to microoven which we…
What is Semiconductor?
There are some materials (such as- silicon and germanium) which are neither good conductor nor insulator. These are called semiconductors. Pure semiconductor works as an…
Advantages and Disadvantages of Analogue and Digital Signal
Digital as well as Analog System, both are used to transmit signals from one place to another like audio/video. Digital system uses binary format as…
What is Digital Signal?
Generally the word ‘digit’ means number. The word ‘digital’ comes from the word digit. Digital signal means such a communicative signal which can receive some…
What is Analogue Signal?
The magnitude of some quantity which changes continuously is called analogue. The magnitude of the quantities such as sound, light, temperature, pressure can be of…
Development of Electronics
The present era is the era of electronics. Radio, television, phone, fax, camera, computer, watch etc. are the contributions of electronics. The control of the…
Dangers of Radioactivity
Although radioactivity is beneficial to us, it can be very dangerous also. The high dose of radioactive radiation can create serious problems in human body.…
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