0
A component of a given size that offers low resistance is called a good conductor.
A conductor having some appreciable resistance is called a resistor.
A component of identical size that offers a higherresistance is called a poor conductor.
An insulator of the same size offers even higherresistance.
What else can I help you with?
What type of metals are insulators?
Metals are conductors of electricity, not insulators. Insulators are typically non-metallic materials such as rubber, plastic, and glass. They have high resistance to the flow of electrical current.
What is bulk resistivity?
Bulk resistance is the ohmic resistance of the semiconductor material. The natural resistance of a "P" type or "N" type semiconductor material.
What type of resistance do conductors have?
Conductors have resistance due to collisions between free electrons and atoms within the material. This resistance causes energy to be lost in the form of heat when current flows through the conductor. The resistance value depends on the material and dimensions of the conductor.
What samples of matter are the best conductors of electricity?
Metals such as copper, silver, and gold are among the best conductors of electricity due to their free-flowing electrons. Other good conductors include aluminum, iron, and brass. Materials like rubber, glass, and plastic are poor conductors and are known as insulators.
What factors contribute to the resistance experienced in electrical circuits, and how is this resistance caused by the properties of the materials involved?
Resistance in electrical circuits is caused by factors such as the type of material used, the length and thickness of the wire, and the temperature. Materials with high resistance, like insulators, impede the flow of electric current. The resistance is caused by the properties of the materials, such as the number of free electrons available for conduction and the atomic structure that hinders the movement of electrons.
What type of metals are insulators?
Metals are conductors of electricity, not insulators. Insulators are typically non-metallic materials such as rubber, plastic, and glass. They have high resistance to the flow of electrical current.
What type of resistance does a good insulator provide?
A perfect insulator (which does not really exist) would have an infinitely high resistance. Good insulators provide very high resistance to current flow, on the order of tens of megohms and up.
Is iron conductors or insulators?
Iron is a very good type of metal and its also a good conducter
What is bulk resistivity?
Bulk resistance is the ohmic resistance of the semiconductor material. The natural resistance of a "P" type or "N" type semiconductor material.
What type of resistance do conductors have?
Conductors have resistance due to collisions between free electrons and atoms within the material. This resistance causes energy to be lost in the form of heat when current flows through the conductor. The resistance value depends on the material and dimensions of the conductor.
Why suspension insulators preferred for high voltage power transmission?
'Suspension' type insulators are less expensive to manufacture than 'pin' type insulators for voltages in excess of around 33 kV. Each 'dish' is designed for specific voltage (e.g. in the UK, typically 11 kV), and several can be added to form a 'string' to match any desired voltage level. This inceases their versatility. Suspension insulators also allow for greater lateral movement of the conductors.
What are the values for insulation resistance test?
Values of insulation resistance vary according to the type of insulators and the size of the conducting material inside the insulators, for instance insulation resistance of wires or cables are determined according to type of insulation PVC-PE-XLPE-..... etc and the size of the conductor, and the standard which the wires or cables are designed upon. For example BS 5308 standard states that cables of conductors 0.5, 1, and 1.5 with PVC insulation should have a minimum insulation resistance of 25 Mohm.km . but cables with PE insulation should have a minimum insulation resistance of 5 Gohm.km ...... Now you may realize the difference in IR values. I hope I manage to make it clear image for the answer.
What samples of matter are the best conductors of electricity?
Metals such as copper, silver, and gold are among the best conductors of electricity due to their free-flowing electrons. Other good conductors include aluminum, iron, and brass. Materials like rubber, glass, and plastic are poor conductors and are known as insulators.
What is a conductor made from?
depends on what you are conducting but generally a metal is a universal conductor. if it conducts electricity well then it will conduct heat well. some metals are better than others and you can figure this out by resistance values of the type of metal. more resistance makes it a less efficient conductor. insulators have very high resistance.
How many type of conducters?
There are two main types of conductors: 1) electrical conductors, which allow the flow of electrical current, and 2) heat conductors, which allow the transfer of thermal energy. Some materials can serve as both electrical and heat conductors, while others may only be conductive in one form.
What material is used for the conductor on the high voltage AC overhead cables is it steel or aluminium and Is there an insulator?
High Voltage Overhead cables: Aluminum conductors reinforced with steel (known as ACSR) are primarily used for medium and high voltage lines and may also be used for overhead services to individual customers. Aluminum conductors are used as it has the advantage of better resistivity/weight than copper, as well as being cheaper. Some copper cable is still used, especially at lower voltages and for grounding.To attach the cable to the towers you need to use some type of insulator.Insulators must support the conductors and withstand both the normal operating voltage and surges due to switching and lightning. Insulators are broadly classified as either pin-type, which support the conductor above the structure, or suspension type, where the conductor hangs below the structure. Up to about 33 kV (69 kV in North America) both types are commonly used. At higher voltages only suspension-type insulators are common for overhead conductors. Insulators are usually made of wet-process porcelain or toughened glass, with increasing use of glass-reinforced polymer insulators.
What factors contribute to the resistance experienced in electrical circuits, and how is this resistance caused by the properties of the materials involved?
Resistance in electrical circuits is caused by factors such as the type of material used, the length and thickness of the wire, and the temperature. Materials with high resistance, like insulators, impede the flow of electric current. The resistance is caused by the properties of the materials, such as the number of free electrons available for conduction and the atomic structure that hinders the movement of electrons.
