Arc Length depends on the secondary voltage of furnace transformer. Thumb rule is for 500V the Arc length would be 500mm(20").
The purpose of arc length is to give maximum power to the melt, without arc flare. -
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Submerged Arc Furnace is also called smelting furnace. The furnace is called submerged Arc because Soderberg(Carbon) Electrodes are , buried inside the charge mix. Though Arcing is there but can not be seen. This Furnace is used for producing Ferro Alloys,Pig iron,Silicon metal, Calcium Carbide, Ferro Silicon,Ferro Chrome, Silico Manganese
Current = charge/time = 10/5 = 2 amperes
Charge buildup between the plates of a capacitor stops when the current flow through the capacitor goes to zero.
calulate the voltage of a battery that provides 20 joules of energy to every 5 coulombs of charge
Yes, it can. Then you can use the charge to power something else. :)