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BS ref. 7079
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∙ 12y ago
Wiki User
∙ 10y agobs 7079
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Who has a bigger atomic size potassium or copper?
I believe the answer is copper.... you can always ask for the atomic number or search a chart (images) on google. :-)
What size copper main bonding jumper is required based on the service entrance conductors being rated at 250 kcmil thwn-thnn copper?
Based on NEC 250.66- #2 copper or 1/0 aluminum.
Can a copper penny and a large copper bell have the same density and why or why not?
Density is an intensive property, not dependent from the size of an object.Density is the ratio between mass and volume.If the coin and the bell have the same chemical composition the density is equivalent.
Why is copper more expensive than iron?
There was a gold rush, not a copper rush, for one. Also, our nation onced had a gold standard, not a copper standard, for gold is much more valuable. In the old days, scientists tried everything that they could think of to turn rocks and such into gold for a reason, and that reason was the fact that gold in any amount, was worth a fortune! Plus, you never hear of 24 karot copper jewelry, do you? Copper is for wiring and such, as gold is too good of a metal for that.
Is brass alloy a compound?
Brass is a substitutional alloy. Due to the similar size of the two elements copper and zinc which make brass one can not fill the interstitial space between the other elements atoms. This means that it can not be interstitial. The elements are however close in all the necessary aspects to form a substitutional alloy. They are relatively even in size, have the same crytal structure and have similar electronegativities. This allows one element to replace the other which in the case of brass where copper is the solvent, zinc atoms become a substitution for the copper atoms
What British standard would be used in determining the size of metallic abrasives?
ASTM F1330 - 91(2012) Standard Guide for Metallic Abrasive Blasting to Descale the Interior of Pipe Publication Date05 January 2012
What size is the British standard finger?
The size of the British Standard Finger is 12.5mm in diameter by 80mm in length according to the IP codes BS EN 60529 Specification for degrees of protection provided by enclosures (IP code). Hope this is of some help.RegardsShane Gr.
What is standard size of table?
There is no standard size.
What is the margin of safety with selecting circuit breakers?
The NEC requires that if the intended rating of a circuit corresponds to a standard size breaker then that size breaker must be used. In most instances, "rating of a circuit" means the intended connected load plus 25%. If the intended rating of a circuit does not correspond to a standard size breaker, you can go up to the next standard size without any other adjustments. In most circumstances, besides what I've already stated, a 14 gauge copper wire cannot be connected to a breaker larger than 15 amps, 12 gauge copper to a 20 amp breaker, and 10 gauge copper to a 30 amp breaker.
What is the standard size European hose bib?
3/4" BSPP (British Standard Pipe Parrallel). These fit together without binding, and must use a washer to seal.
What size breaker would e needed for 10.8 amps?
In standard construction this would require a 15 amp breaker and 14 gauge copper wire.
What is the standard size of a furniture?
What is the standard size of a sofa?
What is the size of a standard window?
There is no standard window size.
What is the standard size of a factory?
There is no standard size of a factory.
Is copper heavy for its size?
No
What is standard Size of envelope?
What is the standard-size large envelope?
What is the oldest US copper penny?
The first standard-issue US "pennies" (actually they're cents) were Large Cents struck in 1793. They were about the size of half-dollars.Modern small cents were introduced in 1856. They were never made of pure copper; at various times they were made of copper-nickel, bronze, steel, and (today) copper-plated zinc.
