Sentences with phrase «as electrical conductors»

Some ants act as electrical conductors, others as flying transport, and even some as killer ants.

The nanotubes act as an electrical conductor, capturing the electrons from the plant material and sending them along a wire.

Not exact matches

«Just as in regular electric generators, when moving magnetic fields cross long electrical conductors, electric currents will be generated.

While such a device is called a plasma cutter, it is really an electrical arc cutter (or welder), as the plasma actually acts as a conductor to let an electrical current flow through it.

Furthermore, the scientists proved the device's mechanical durability through repeated bending and stretching, exceeding 10,000 times, of a conductor attached on the forefinger; they also established its reliability as an electrode for electromyogram recordings when its readings of the electrical activity of muscles were comparable to those obtained through conventional gel electrodes.

Most plasma cutters work best when the material being cut is a conductor, as the material can therefore complete the circuit and send the arc's electrical current back to the cutter device by means of a cable clamped to the target.

Less than two years ago, Kanatzidis and his team, with postdoctoral fellow Lidong Zhao as protagonist, identified tin selenide as a surprisingly good thermoelectric material; it is a poor conductor of heat (much like wood)-- a desirable property for a thermoelectric — while maintaining good electrical conductivity.

Silicon's characteristics as a semiconductor — a substance with electrical properties midway between those of a conductor and an insulator — make it the dominant material of microelectronics.

In practice, however, these elements are not suitable electrode materials, as oxygen - based cathodes are inefficient, and sulfur and selenium electrodes are poor electrical conductors.

Year 4 Science Assessments Objectives covered: Recognise that living things can be grouped in a variety of ways Explore and use classification keys to help group, identify and name a variety of living things in their local and wider environment Recognise that environments can change and that this can sometimes pose dangers to living things Describe the simple functions of the basic parts of the digestive system in humans Identify the different types of teeth in humans and their simple functions Construct and interpret a variety of food chains, identifying producers, predators and prey Compare and group materials together, according to whether they are solids, liquids or gases Observe that some materials change state when they are heated or cooled, and measure or research the temperature at which this happens in degrees Celsius (°C) Identify the part played by evaporation and condensation in the water cycle and associate the rate of evaporation with temperature Identify how sounds are made, associating some of them with something vibrating Recognise that vibrations from sounds travel through a medium to the ear Find patterns between the pitch of a sound and features of the object that produced it Find patterns between the volume of a sound and the strength of the vibrations that produced it Recognise that sounds get fainter as the distance from the sound source increases Identify common appliances that run on electricity Construct a simple series electrical circuit, identifying and naming its basic parts, including cells, wires, bulbs, switches and buzzers Identify whether or not a lamp will light in a simple series circuit, based on whether or not the lamp is part of a complete loop with a battery Recognise that a switch opens and closes a circuit and associate this with whether or not a lamp lights in a simple series circuit Recognise some common conductors and insulators, and associate metals with being good conductors

Objectives Covered: Identify common appliances that run on electricity Construct a simple series electrical circuit, identifying and naming its basic parts, including cells, wires, bulbs, switches and buzzers Identify whether or not a lamp will light in a simple series circuit, based on whether or not the lamp is part of a complete loop with a battery Recognise that a switch opens and closes a circuit and associate this with whether or not a lamp lights in a simple series circuit Recognise some common conductors and insulators, and associate metals with being good conductors ALSO ADDED: Individual assessments for ALL science objectives for ALL year groups are available for purchase as are individual year group, KS1, KS2 or complete Primary packs.

These conductors function as invisible electrodes for circuit wiring, touch sensing, or electrical charge collection and are typically composed of transparent conductive oxides.

Bus: An electrical conductor that serves as a common connection for two or more electrical circuits.

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Pure water with no exogenous ions in it is a very poor electrical conductor (and even, in fact, functions as an insulator), but because water is such an excellent solvent, it always has impurities in it and these impurities, even in «deionized» water in laboratories, are what creates the electrical conductivity.

Identification of electrical conductors or wires by their general type, such as «non-metallic sheathed cable» («Romex»), «armored cable» («bx») or «knob and tube», etc..