Electricity

Drift velocity is defined as the velocity with which free electrons get drifted towards the positive terminal when an electric field is applied. If τ…

Television is such a device by which we can hear the sound and watch the picture of the speakers on the s cvn from distant…

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…

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 Speaker Microphone is orally known as the mic. In a big meeting or program, a speaker delivers his speech in front of an…

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…

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…

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…

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…

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…