Class 12

Communication is the act of transmission of information. Every living creature within the world experiences the necessity to impart or receive information, virtually unceasingly, with alternatives in the close world. For communication to be successful, it’s essential that the sender and the receiver perceive a standard language.  Humans have perpetually created endeavours to enhance the […]

Signals are pieces of information converted into an electrical form to be transmitted. Essentially, they are single-valued functions of time. This signal can be music, computer data, pictures or voice in a communication system. The different types of signals require different ranges of frequencies.  The bandwidth of signals is the range of frequency over which

Amplitude modulation is performed when we transmit data or information over the wires. Typically, amplitude modulation is designed to help the receiving machine identify data in the original quality. When we send any data via cable or using a wireless connection, it always carries an analogue signal even if it is a digital connection. In

Communication is the transmission of information. The transmitter, channel and receiver are the three essential parts of any communication system. There are two basic modes of communication: point to point and broadcast. Radios and television are examples of broadcast communication systems in which there are many receivers in correspondence to a single transmitter. Frequency modulation

Introduction When electric and magnetic fields come in contact, electromagnetic waves are produced. And when these waves are combined, it gives rise to electromagnetic radiation. In other words, it is said that electromagnetic radiation is produced by oscillating magnetic and electric fields. In classical physics, electromagnetic radiation is energy flow through a material medium or

Modulation is a requirement for changing the adjust the nature of a signal as per the necessities. Modulation converts data from the carrier signal wave to a modified signal. Demodulation is reconfiguring the modulate form of the signal into the carrier one to derive the original data. Modulation is often employed for electromagnetic waves that

The communication system is a system of information exchange between two parties. Communication is the process of transmission and reception of information. The transmitter, the channel and the receiver form a significant part of the communication system. Frequency modulation is an integral part of the communication system as this technology is used in various fields

Various factors restrict the transmittance of the original low-frequency communication signal over lengthy ranges. As a result, at the transmitter, the low-frequency message signal’s data superimposes on a high-frequency wave, which serves as a carrier of the data. This behaviour is modulation. We can classify modulation into three types: Amplitude Modulation (AM) Frequency Modulation (FM)

The communication system is a system of information exchange between two parties. Communication is the process of transmission and reception of information. The transmitter, the channel and the receiver form a significant part of the communication system. Frequency modulation is an integral part of the communication system as this technology is used in various fields

Radiation transfers heat from one position to another without heating the intervening medium. The term ‘radiation’ refers to electromagnetic waves. These waves, which carry energy, are formed by the superposition of perpendicular electric and magnetic fields. In general, the term radiation refers to the phenomenon of waves that tend to radiate from a source. This