The diameter of aluminum wires will be 85 mm squared and copper wires will be 127 mm squared for AC current 200 amp.
2/0 AWG in copper and 4/0 AWG in Aluminum or copper clad aluminum.
Mainly copper. Both copper and aluminum wire is used in the electrical trade. Copper in the smaller size wires but aluminum becomes more viable when bigger size wire is needed. This is usually 200 amp services and larger. When aluminum wire is used for a specific amperage, one size larger is required than when using copper. The money savings on aluminum wire over copper wire in the larger sizes is about 20%.
for residential use 2/0 copper or 4/0 aluminum, if your talking long distances then you need to up size for voltage drop
The objective mirror is 5.1 meters (200 inches) in diameter.
The limiting visual apparent magnitude of a 200 inch diameter telescope is very large. It will reach a magnitude of over 500.
2/0 AWG in copper and 4/0 AWG in Aluminum or copper clad aluminum.
Mainly copper. Both copper and aluminum wire is used in the electrical trade. Copper in the smaller size wires but aluminum becomes more viable when bigger size wire is needed. This is usually 200 amp services and larger. When aluminum wire is used for a specific amperage, one size larger is required than when using copper. The money savings on aluminum wire over copper wire in the larger sizes is about 20%.
A circle with an area of 200 acres has a diameter of: 3,331 feet.
This is a voltage drop question. A 300 MCM copper or a 500 MCM aluminium conductor will limit the voltage drop to 3% or less when supplying 200 amps for 450 feet on a 240 volt system. The cheapest of the two conductors would be the aluminium conductor. For direct burial is will have a ACWU 90 designation.
The area of a circle whose diameter is 200 meters is: 31,420 m2
5.25% of 200 pounds is 10.5 pounds. (200 x .0525) So, the 200 pound object would be composed of an alloy containing 10.5 pounds of copper.
The circumference is 200 times 3.14159 = 628.32 The circumference C is pi times diameter d. pi = 3.14159
Perimeter = pi*diameter so 200*pi = 628.32 metres.
The volume of a pipe that is 10mm diameter and 200 meters long is: 0.015708 m3
That depends on the ingredients of the dough. Copper is the second best conducting metal at room temperature. Aluminum has about 59% of the conductivity of copper. Rubber is a generic terms used to describe about 200 different formulas of natural or synthetic pliable substances, most of which are generally insulators (non-conductors or resistive conductors of electricity). The conductivity of dough will depend heavily on the salt, electrolytic, or ionic content of the final product. Dough with a high salt, electrolytic, or ionic content might actually be a better conductor than copper. The problem here is that the heat conductivity of organic components such as are used to make dough is poor--that is they catch fire easily. That's why we don't make wires out of dough.
200 amps on a single phase service. Incoming cable should be 4/0 Aluminum or 3/0 copper. Aluminum is OK for entrance cable, as it is stranded and is made of an alloy that does not have "creep" like the single strand aluminum wire of the 70s had.
Your service provider will give you that information The size will depend on: A) how close to the transformer are you. B) copper or aluminum C) Yes, you have a 400amp service but what will your actual peak amp usage be. D) Underground or overhead.