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Compare explain how the movements of electrons in electrical conductors and electrical insulaters affect the properties of the materials?
In electrical conductors, electrons can move freely, allowing for the transfer of electrical energy. This results in conductors having high electrical conductivity. In contrast, in insulators, electrons are tightly bound to their atoms and cannot move easily, leading to low electrical conductivity. Insulators have high resistance to the flow of electricity due to this lack of electron mobility.
Can you explain what it means for a semiconductor to be degenerate and how this affects its electrical properties?
When a semiconductor is degenerate, it means that its electrons have filled up all available energy levels in the conduction band. This leads to a high electron concentration and makes the semiconductor behave more like a metal in terms of its electrical properties. This can result in higher conductivity and different behavior in electronic devices.
How would you explain the terms ductility and thermal conductivity mean?
Ductility refers to the ability of a material to be stretched without breaking. A ductile material can be drawn out into a wire or thread. Thermal conductivity refers to a material's ability to conduct heat. Materials with high thermal conductivity can quickly transfer heat.
What explain how electrical charges flow?
Electrical charges flow when there is a potential difference between two points in a conductor, creating an electric field. This field exerts a force on the charges, causing them to move through the conductor. The flow of electrical charges is known as an electric current.
Explain why the outside cases of electrical appliances are usually made of plastics?
Electrical appliances are made with plastic outer cases because plastic is a non-conductive and lightweight material that helps to reduce the risk of electrical shock. Additionally, plastic is durable, heat-resistant, and cost-effective, making it a suitable material for housing electrical components.
Compare explain how the movements of electrons in electrical conductors and electrical insulaters affect the properties of the materials?
In electrical conductors, electrons can move freely, allowing for the transfer of electrical energy. This results in conductors having high electrical conductivity. In contrast, in insulators, electrons are tightly bound to their atoms and cannot move easily, leading to low electrical conductivity. Insulators have high resistance to the flow of electricity due to this lack of electron mobility.
Which two properties are explained by the pool-of-shared-electrons model for metals?
The pool-of-shared-electrons model for metals can explain their high electrical conductivity and malleability. In this model, the atoms in a metal share their outer electrons freely, creating a "sea" of electrons that are mobile and can carry electrical charge easily, which contributes to the metal's conductivity. The delocalized nature of the electrons also allows the metal to be easily reshaped without breaking the metallic bonds, giving it malleability.
How do you know explain the electrical conductivity of sodium chloride only as melt and in water solution but not in solid phase?
Sodium chloride in liquid phase and sodium chloride in water solution are electrolytes, containing ions Na+ and Cl-.
What does the electron sea model of metallic bonds help you to explain?
Properties of metals as high boiling point, high melting point, malleability, ductility, electrical conductivity, thermal conductivity, lustre are explained by the theory of metallic bonds.
Explain the power supply circuit for conductivity electrode?
You have to excite it with a sinusoidal signal then measure the current or voltage
Can you explain what it means for a semiconductor to be degenerate and how this affects its electrical properties?
When a semiconductor is degenerate, it means that its electrons have filled up all available energy levels in the conduction band. This leads to a high electron concentration and makes the semiconductor behave more like a metal in terms of its electrical properties. This can result in higher conductivity and different behavior in electronic devices.
Explain the role of national code in the design of electrical installation?
role of national electric code in the design of electrical installation
Explain conceptions of root means square electrical field question?
The algebraic method I = Iosin ωt and I2 = Io2 sin2ωt can be used to explain the conceptions of root means square electrical field.
How would you explain the terms ductility and thermal conductivity mean?
Ductility refers to the ability of a material to be stretched without breaking. A ductile material can be drawn out into a wire or thread. Thermal conductivity refers to a material's ability to conduct heat. Materials with high thermal conductivity can quickly transfer heat.
Explain how a simple motor functions?
it converts electrical energy into mechanical energy
What do metallic bonds explain about the properties of gold?
Gold is a shiny, ductile material which is a good conductor of electricity and heat. All of these can be ascribed to its metallic bonds. What can't be explained so readily is its relative inertness and its color as metals are generally more reactive than gold and the majority are silvery white
The electron sea model of the metallic bond helps to explain why metals are what?
The electron sea model explains why metals are malleable and good conductors of electricity. In this model, metal atoms donate their outer electrons to form a "sea" of delocalized electrons that are free to move throughout the structure, contributing to the metal's properties.
