All normal conductors have a small amount ofresistance. If too much current is put through a conductor, it will start to heat up. This can cause a fire on an overloaded electrical circuit. Superconductors have no resistance, allowing them to carry a potentially unlimited amount of current. Key...
In general, metals are shiny, reflecting most of the light that strikes them. They are malleable and ductile (that is, they will bend under pressure and are not brittle). They have a broad range of melting temperatures (e.g., mercury is a liquid at room temperature, gallium will melt i...
That’s because metal is a great conductor of electricity. (In fact, so is the human body, which is why you can sometimes pass the shock on to someone else.) The opposite of a conductor is an insulator, which impedes the flow of electrons from one material to another. Rubber is a gr...
Definition of electric current:Electric current is the amount of charge, Q passing through a circuit per unit time t. Current is denoted by the symbol I. Mathematically: {eq}Current, I = \dfrac{\Delta Q}{\Delta t} {/eq}Answer and Explanation: ...
A semiconductor is a substance that can act as a conductor or insulator depending on other factors, enabling it to serve as a ... See complete definition What is MIMO (multiple input, multiple output)? MIMO (multiple input, multiple output) is an antenna technology for wireless communications...
Ask a question Search AnswersLearn more about this topic: Heat Energy | Definition, Examples & Types from Chapter 17 / Lesson 7 161K Understand the meaning of heat energy. Discover the types of heat energy and see examples of it. Related...
Electromigration is the movement of atoms based on the flow of current through a material. If the current density is high enough, the heat dissipated within the material will repeatedly break atoms from the structure and move them. This will create both
Conductance Definition: Conductance is defined as the capacity of a substance to allow the passage of an electrical current, which is the opposite of resistance. Measurement Units: The unit of measure for conductance is Siemens, symbolized as ‘S’, which helps quantify how easily electricity flows...
Define give what for. give what for synonyms, give what for pronunciation, give what for translation, English dictionary definition of give what for. v. gave , giv·en , giv·ing , gives v. tr. 1. To make a present of: We gave her flowers for her birthda
The definition of electricity is the flow of charge. Usually our charges will be carried by free-flowing electrons. Negatively-charged electrons are loosely held to atoms of conductive materials. With a little push we can free electrons from atoms and get them to flow in a generally uniform ...