radio stations

Hz (audio-frequency range) cannot be efficiently radiated and do not propagate well in space. (ii) Simultaneous transmission of different signals by different transmitters would lead to confusion at the receiver. In order to solve these problems; we need to devise methods to convert or translate th..

3. A radio station broadcasts on a frequency of 980 kHz (kilohertz). What is the electromagnetic radiation broadcasted by the radio station..

.C circuit behaves like a pure resistive circuit is called resonant frequency. The following diagram shows the variation of frequency with I o . Notice that as the value of R decreases, the value of I o increases. Since the circuit behaves like a pure resistive one, the current and voltage are in p..

. A good quality service can be continuously ensured by a global operational satellite system. Thus, communication satellites would give a valuable service in addition to the submarine cable and high frequency radio systems. Geostationary communication satellites have enabled not only nat..

In 1926, an American rocket engineer Robert Goddard, built and tested the first rocket which used liquid fuels instead of solid gun powder. During the Second World War powerful liquid fuel rockets were built by Germans to carry explosives. Later, Americans started building their own rockets not to ..

These are commonly used in power distribution (at low frequencies) and in communications (at high frequencies). Biodiversity is most simply defined as the variety of life and its processes. A transmission line may be defined as a device for transmitting or guiding energy from one point to another...

Domestic Electric Circuits - Electric power is usually generated at places which are far away from the places where it is consumed. At the generating station, the electric power is generated at 11,000 volts. This voltage alternates at a frequency of 50 Hz. The power is transmitted over lo..