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What can melt easily conduct electricity when melted and does not change when electricity currents pass through it?
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What is a liquid metal conducts electricity and does not change when a current passes through it?
This metal is mercury.
Is conducting electricity a physical change or a chemical change?
It's neither since the copper isn't changing at all. Electrons are just flowing through the copper atoms.
Why does not distilled water conducts electricity?
For a material to conduct electricity it needs to have free charge carriers. I.e. particles with charge that can move around the material. Distilled water, or pure water only contains H2O molecules, which are neutral. Rainwater on the other hand also contains other materials such as salt, which in water falls apart into positive and negative ions. These are serviceable charge carriers, and therefore rainwater can conduct electricity.
How is a moving magnet used to create electricity?
makes current flow through a magnet
What would be the greatest effect if there was a change in the Earth's core?
convection currents in the mantle.
Is a foam pillow a conductor or an insulator?
This depends on the type of foam. There have been made foam that actually conduct electricity. This is a choice made in the manufacturing of the foam. Most foam in mattresses and the like does not conduct electricity. Moisture however can change the mattresses conductivity drastically.
How do you make an elektromagnet stonger?
~Increase the amount of electricity flowing through it. ~Tighten the wire around it (if there is one) so it is making more coils than before. ~Change the core into one which will conduct electricity better than the other.
How does a resistor slow down the flow of change in a circuit?
It is made of a semiconductor that doesn't conduct electricity as well as the rest of the circuit. It dissiapates some of the electrical energy as the current flows through it.
Does your body allow electricity to flow through it?
Yes of course, we have salts, minerals etc.... so they do The body is not a great conductor, but it can conduct electricity and that is why you can feel a shock through static electricity or a killing shock such as an electric chair. Conductance will vary from person to person and will change depending on conditions such as sweat, being wet from a shower and so forth.
How do you change oil to electricity?
oil goes through the generator and that turns it into electricity. the they go through the wires and get to the houses
Why does the electrical counductivity of ionic compounds change when they are dissolved in water?
The ions dissociate (separate) in solution and can conduct electricity.
Is copper conduct electricity a chemical change or a physical change?
It's neither since the copper isn't changing at all. Electrons are just flowing through the copper atoms.
What metal doesn't change when electricity goes through it?
Electric current is a flow of electric charge through a medium
What is a liquid metal conducts electricity and does not change when a current passes through it?
This metal is mercury.
How do wires change after the electricity goes through the smaller transformer?
voltage gets smaller
Is conducting electricity a physical change or a chemical change?
It's neither since the copper isn't changing at all. Electrons are just flowing through the copper atoms.
Who invented semiconductor why?
Who? Semiconductors were first discovered in 1833 by Michael Faraday while working at the Royal Institute in London. The first material which he realised had the properties of semi-conductance was silver sulphide, the black tarnish that appears on Silver if you don't polish it for a while. Why are they useful? Normally they do not conduct electricity, but when a voltage is applied to them, they change so they do conduct electricity. A practical example is a transistor, which is like a switch with no moving parts. When no voltage is applied to the semiconductor, the switch is effectively open (the electricity cannot flow). When a voltage is applied, the switch is effectively closed (the semiconductor conducts, so the electricity can flow through it).
