Want this question answered?
Throughout the world the system used for home electrification is alternating current (AC).
what switches a current of electricity if it gets to high is that it overloads a system (which is called a surge (if sudden)) also if you do it manually it is the disruption in the circuit that stops the flow of electricity entirely.
Nikola Tesla and Thomas Edison were opponents in The Battle of the Currents, the rivalry between Tesla's alternating current (AC) system for electricity and Edison's direct current (DC) system for electricity. AC 'won' the battle, the current is far more effective. This means that all electricity used today travels by AC, not DC. All DC is used for anymore is batteries.
Because voltage is the power that makes electricity to circulate in a wire. Depending on the diameter, the lenght and material of the conductor (wire) the current, (the amount of electrons) flowing in the wire, the resistance will be lower or higher. Conclusively, the voltage is not the electricity itself, but it is like a pump that impulses the water through a pipe. Electricity is the current whose unit of measurement is the Ampere. So you have the voltage, resistance, and current in a electrical circuit on a direct current system.
To give the answer most accurately, Electrical current was not "invented". Electrical current is the rate of flow of electricity in a conducting substance, and the unit of the flow of that current in the International System of units is the Amp or Ampere, named after the 19th Century French Physicist Andre-Marie Ampere. It was not invented because it simply existed before invention of artificial electricity. The example I have in mind for such natural electricity is the flow of electrical current through a tree when it is struck by lightning.
You can troubleshoot problems with your pa system speaker by restarting the electricity source. www.homerecordingconnection.com has good information too. You will fist need to determine if you have power to the PA system. If you have power but no sound,make sure all connections are secure, and correct.
1. Interpreting the customer's requirements.2. collecting data from the existing system.3. Description of the current system - establishing the inputs, outputs and processing being done.4. identification of the problems with the current system.
Electricity was not invented by anyone but God. Man have been working on it since ancient time. Nikola Tesla invented his system to reproduce electricity in an alternate mode call ac current.
He shaped the world as it is today by inventions. He is most notorious for his ac current system which the whole world uses today.
Nikola Tesla was the inventor of the alternating current light and power system in use all over the world today.
In the "War of Currents", George Westinghouse and Thomas Edison became adversaries due to Edison's promotion of direct current for electric power distribution over alternating current advocated by Westinghouse and Nikola Tesla. AC was and it is the best system.
Nikola Tesla invented the poly-phase A/C (alternating current) distribution system currently used worldwide.