Despite the fact that silver is a little stronger electrical conductor than copper (approximately 5% better), it is now more than 8.9 times more costly (using current spot market prices for each metal). Because the gain in transformer efficiency is relatively marginal, using silver windings instead of copper is not cost-effective. Modern power transformers usually use aluminum for their cores, with silicon carbide or carbon fibers inserted into the core to increase its strength.
The main advantage of silver over copper is its resistance to corrosion. It is also non-toxic and inert in nature. These are both advantages when working with electricity, since it prevents chemical reactions between your equipment and wiring from causing problems down the road. However, all things being equal, copper is still preferred because of its lower cost and greater availability.
Silver has many other applications where its excellent properties as an electrical conductor are needed. It is used in medical devices, such as heart pacemakers and insulin pumps, due to its resistance to corrosion. It is also used in scientific research instruments, like vacuum tubes and oscilloscopes, because its resistance to corrosion allows it to be used inside of these equipment components without risk of damage or failure.
In conclusion, silver is more resistant to corrosion than copper, but this difference is not enough to justify its use in place of copper for ordinary household wiring.
Silver is a good conductor of electricity, but it is too costly to employ in the manufacture of electric cables. Instead, copper or other metals are used for these purposes.
However, silver does play an important role in the cable manufacturing process. It is used as an additive to provide insulation resistance against electrical breakdown.
Also, silver particles are mixed with rubber or other plastic materials and then shaped into ropes or cords for use in various products such as carpeting, drapery fabric, upholstery, and body armor. These items are called "silver-filled" because they contain more than 1% by weight of metal.
Furthermore, silver is used in the wire drawing process to help prevent corrosion on the surface of the metal. In this case, silver is applied to the surface of the metal via an electroplating process.
Finally, silver is used in photographic processing laboratories to preserve color prints from fading due to light exposure. This application requires only small amounts of metal (usually less than 0.5 grams), so it does not require it to be pure silver.
In conclusion, silver is used in the cable industry to protect copper conductors from electrical breakdown and to provide insulation resistance against electrical breakdown.
Because silver has a somewhat lower resistivity than copper, a thinner wire can have the same resistance. Because silver is costly, a copper wire with the same resistance costs much less. This is why most modern speaker cables are made out of these two materials.
The reason silver cable is preferred by many engineers is that it produces less noise when moving than copper cable does. This is important because any noise in your power supply will be magnified by any active components such as amplifiers. If you're not using silver cable, you should probably go buy one anyway!
Copper is better for high-frequency signals because its resistance decreases as the frequency increases. The problem is that at some point copper becomes too expensive to use as a conductor. Silver has a resistance that's almost as low as copper's at high frequencies, so it's preferable.
Finally, both copper and silver are good choices for ground connections because any voltage on them means trouble somewhere. A common mistake is to assume that if something is connected to ground, it must be OK. It may work fine for now, but if there's a problem with another part of the circuit later on, this metal-connected item could end up feeding back into itself.
The copper makes the silver tougher and more robust, making it easier to work with and use, without sacrificing color. The majority of silver jewelry you buy and wear will be sterling silver. But some manufacturers also make fine copper-based jewelry that is similar to sterling.
Sterling silver and copper are both base metals that can be heated to create a shiny surface. Both materials are used to make jewelry for all ages and sizes. There is no best metal for every purpose. It's what you want for your own personal style that matters most.
Copper is the old school metal for jewelry. It is known for its warm tone that increases in beauty as it ages. Silver is the new kid on the block when it comes to jewelry. It is known for its bright color and high shine that wear over time. Each metal has its advantages: copper is affordable and easy to work with while silver is luxurious and expensive. They are both good choices for jewelry!
Silver has its drawbacks too. Because it is such a popular material everyone uses it, which means you often see cheap imitations. And because it is a bland color on it's own, people add other elements to it like gems and gold to make beautiful pieces. That's why it's important not to judge a book by its cover.
Graphite is just insufficiently versatile and usable in the field. Silver costs more than 80 times the weight of copper and is just slightly better as a conductor. It is far less expensive to utilize a bit more copper than a little less silver. Of course, you can also make cables out of graphite, but they are very fragile and break easily.
Another reason is that copper is easier to work with when making cables. You can solder wires together using this material instead of having to wrap them with tape like you would if they were made of silver or graphite.
Finally, copper is a common element and can be found almost everywhere on Earth. This makes it easy to obtain, which is why most cable manufacturers choose this material over others that may be more effective, but much harder to come by.