when transmission we usually use high voltages becoz at higher voltages current is less(p=vi,voltage is inversly proportional to current at constant power) so that we can minimize copper losses i2R losses.
because they re-act better to electricity
It flows through aluminum foil better because electricity flows throw aluminum or metal better then plastic or other
Yes. At normal temperatures copper conducts electricity better than almost any other metal; silver is slightly better.
warm
Glass in a molten state is a conductor of electricity. When glass turns to a solid state it becomes an insulator.Basically, glass in a window or a test tube would be the solid state and so it is a insulator of electricity.
Alternating current is better than direct current for transmitting electricity over long distances because it can be easily converted to higher or lower voltages using transformers, which reduces energy loss during transmission. Additionally, alternating current can travel longer distances with less power loss compared to direct current.
because they re-act better to electricity
Copper is a common material that electricity travels through easily due to its high electrical conductivity. Silver is even better than copper at conducting electricity, but it is less commonly used due to its higher cost.
Sound travels through water much better than it travels through air. In air, sound travels at about 330 m/sec (metres per second). In seawater it travels at about 1,490 m/s (better 1.49km/sec). Sound also travels much further through water than it does though air. This is the way humpback whales can communicate over very long distances with their singing.
You need to word the question better. Electricity derived from a battery is always DC as batteries are a DC power source.
Sound travels better in calm wind conditions, where there is minimal turbulence to disrupt the propagation of sound waves. On the other hand, strong winds can disperse sound waves, making them less easily heard at long distances.
hydro electricity is better than normal electricity because it is cheaper.
no, water is NOT a better conductor of electricity then silver
Sound typically travels better outside due to fewer obstacles and barriers compared to indoor environments. In open spaces, sound waves can propagate further distances without as much interference or absorption. Indoor spaces, on the other hand, can have more surfaces that reflect, absorb, or disrupt sound waves, leading to decreased sound transmission.
Because then every town has the same voltage: before, if there was a sudden demand for electricity in one town- nearby towns couldn't help for they had different voltages. So, the town couldn't cope with the electricity demand but now it can because of the National Grid.
you get things done better when you do them without help
nuclear is a type of electricity