Techno_Tech

AC Electricity AC stands for alternating current. Many of you may be having bit knowledge of this as this is current that you get from your socket at home In America it is around 120 Volts And in India it is 220-230 Volts and 60 Hertz. In DC the waveform is straight line but in AC you can see a wave in the above image As its name indicates that this is alternating in nature its polarity reverses according to time and we can study it if we know the frequency ie: Hertz In India it is 60 Hertz mean it changes its polarity in 1/60 sec.As the formula is Time=1/frequency The flow of electrons changes at every 1/60 sec and this concept of AC is very important to study the components like capacitors and to know that which component supports AC and which supports DC. As many of you must have question in your mind that why we use AC and not DC for daily use in our appliances. It is because AC is easier to transmit long distance and its voltage can be easily increased or decre...

DC ELECTRICITY DC electricity is known as Direct Current. The reason behind DC is known as direct current are: To conduct electricity there should be a flow of electrons and it takes place when potential difference is applied across it. There are no material in world that do not conduct electricity some material requires less volts to conduct these are conductors and some material requires high (very high) volts to conduct these are insulators.Even air can conduct electricity at high voltage and water is an insulator but it should be pure since water from tap contains chlorine it act as a conductor but distilled water is an good insulator. There are different kind of batteries available in market 1.5 volts 6 volts 9 volts Car batteries have 12 volts The difference in these batteries are related to current the battery of 9 volt have very less amount of power compared to 12 volt battery that we use in car but here the difference is not in the volts here t...