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Voice Frequencies (VF) 2 May 2013 | 11:58 am
Voice frequencies (VFs) are those in the range of 300 to 3000 Hz. This is the normal range of human speech. Although human hearing extends from approximately 20 to 20,000 Hz, most intelligible sound ...
Very High Frequencies (VHFs) 29 Apr 2013 | 11:58 am
Very high frequencies (VHFs) cover the 30 to 300 MHz range. This is an extremely popular frequency range and is used by many services including mobile radio, marine and aeronautical communications, F...
Ohm 26 Apr 2013 | 11:57 pm
A measure of resistance or impedance. 1 Ω = 1 V/A = 1 W/A2 Ohm is the unit of resistance The ohm is defined as a resistance between two points of a conductor when a constant potential difference of 1 ...
Half Duplex Transmission 26 Apr 2013 | 11:58 am
Half duplex transmission another form of two-way communication. In half duplex, only one party/side transmits at a time. After one party then other party/side will proceed. Related Searches: Types ...
Sources of Electricity 25 Apr 2013 | 11:57 am
There are electrons and protons in the atoms of all materials , but to do useful work the charges must be separated to produce a potential difference that can make current flow . Some of the more comm...
Magnetism 24 Apr 2013 | 11:57 am
Electrical effects exist in two forms, voltage and current. In terms of voltage separated electric changes have the potential to do mechanical work in attracting or repelling charges. Similarly, any...
Very Low Frequency (VLF) 22 Apr 2013 | 11:58 am
Very Low Frequency (VLF) include the higher end of the human hearing range up to about 15 to 20 kilohertz (kHz). Many musical instruments also make sounds in this range as well as in the ELF and VF r...
Static Electricity 19 Apr 2013 | 05:03 pm
How Static Electricity was introduced: This important aspect to consider about the introduction and history of Static Electricity, here you will learn about the brief history and introduction about st...
Low Frequency (LF) 17 Apr 2013 | 11:58 am
Low Frequencies (LFs) are those in the 30 to 300 kHz range. The primary communications services in this range are those used in aeronautical and Marine navigation. Frequencies in this range are also u...
Physiological effects of electricity 16 Apr 2013 | 12:30 am
Most of us have experienced some form of electric “shock,” where electricity causes our body to experience pain or trauma. If we are fortunate, the extent of that experience is limited to tingles or j...
