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Why is an electrical circuit made of materials that are conductor?
Wiki User
∙ 12y ago
"Electrical circuit". "Electrical" meaning "electricity". "Circuit" meaning "around from the start back to the starting place". If any of the materials in that circuit path are not conductors, there is no circuit. The electricity only goes that far and stops. So all materials in the circuit must be able to conduct electricity.
Wiki User
∙ 12y ago
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Is a doorknob a conductor?
The short answer to the question "Is a doorknob a conductor?" is "it depends." Doorknobs are generally made from a variety of materials depending on their purpose and the environment in which they are used. Some materials such as aluminum and brass are electrical conductors while others such as stainless steel and many plastics are not.Whether or not a particular doorknob is a conductor depends on the material from which it is made. Generally speaking doorknobs made from non-conductive materials will not conduct electricity while those made from conductive materials like aluminum or brass may conduct electricity. Here is a list of some common materials used to make doorknobs and their relative electrical conductivity: Aluminum - High electrical conductivity Brass - High electrical conductivity Plastic - Low electrical conductivity Stainless Steel - Low electrical conductivity Wood - Low electrical conductivityIf you are unsure about a particular doorknob\'s electrical conductivity the best way to find out is to consult the manufacturer or an electrician. Ultimately the answer to the question "Is a doorknob a conductor?" depends on the material from which it is made.
How can an electrical insulator can be made a conductor?
By ionizing it
What are the materials added in electrical overhead lines?
Overhead electrical lines are usually made of aluminum, and some have a steel strand added which is used to give the conductor more strength (not to carry current).
How is electrical resistance decreased?
Ways to reduce electrical resistance: increase the diameter of the conductor, decrease or increase the temperature of conductor (depending on its thermal characteristics), decrease the length of the conductor. A change in the material out of which the conductor is made can decrease resistance, too. And there is the phenomenon of superconductivity. In a simple circuit the resistance can be lowered by adding resistors in parallel. The total circuit resistance will then decrease. You can also reduce resistance by substituting resistors of lower value, or by adjusting a potentiometer, or pot, to a lower value.
What three factors can alter the resistance of an electrical conductor?
1) What materials the conductor is made of;2) the average cross-sectional area along the length of the conductor;3) the temperature of a conductor also affects its resistance;4) the length of the conductor is also very important.Generally, the longer the conductor, the higher its resistance.Your students' course materials can probably give you a better answer than mine, or at least you'll know it is the right one.
Is neon the best electrical conductor?
The best electrical conductor is silver, followed by copper. Gases can be made to conduct well when they're ionized.
Why are cars not made from copper?
Copper is an excellent electrical conductor.
Will a cup be an electrical conductor or an electrical insulator?
That depends on what the cup is made of. If it's a metal cup, then it's an electrical conductor. If it's a glass, clay, wood, or ceramic cup, then it's an electrical insulator.
Circuit in a sentence?
A circuit needs at least three electrical contacs.
How is a silicon transitor made?
Modern silicon transistors are by layering a semi conductor material on top of a conductor material on top of a semi conductor material. Various materials have been tried to improve the effeciency of the transistor. Most transistors these days come as part of an intergrated circuit or IC
Is a key an insulator or a conductor?
A key would be a conductor. ------------------------------------------------------ That would depend on what the key was made of. Keys made out of metals would be conductors, while contactless plastic car keys would be insulators.
Are toothpicks good electrical conductors?
no, because they are made out of wood, which i not a conductor...
