metal oxide
As that of most power devices power diode are maid from silicon material(because of its wide band gap) . but now days alloy of silicon are used like sic(silicon carbide) by ank
The answer to this depends on the material from which the resistance is made. For most materials resistance increases with increasing temperature. This is referred to as having a "positive temperature coefficient". Some materials have a negative temperature coefficient; these do have uses in electronics.
pentavalent and trivalent atoms
Ferrite core inductors are made for higher frequencies. The ferrite core is a non-conductive ferri-magnetic material which prevents eddy currents from flowing through it. The ferrite formulation is xxFe2O4 with the xx representing various types of metals.
A fabricated bend in trunking refers to a specially designed or custom-made bend in the trunking system used for routing cables or wires. These bends are created to accommodate specific installation requirements or to navigate around obstacles in the building structure. They are typically made by bending, welding, or shaping the trunking material to achieve the desired angle or configuration.
Caskets are generally made of two types of material, wood and metal.
There are generally three main types of cores used in manufacturing: Sand cores - made of sand and binder, used in sand casting. Shell cores - made of resin-coated sand, used in shell molding. Ceramic cores - made of ceramic material, used in investment casting.
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Actually generally speaking Asteroids are heavily composed of high density rock. Dust and Ice are generally the properties of a Comet mostly because they aren't formed near the sun.
Kitchen chairs are generally made out of wood. Usually it's made out of oak wood, but it also can be made out of various types of plastics if it is cheaply done.
The material of your walls can vary, but common types include drywall, plaster, brick, concrete, or wood.
you don't. generally they are made from natural material such as cat gut. therefore, your body can safely absorb the material.
Racing jackets are generally made of fireproof material that is strong. It is generally synthetic, and therefore can be mass produced. It is dyed with industry dyes produced synthetically usually.
there are two types of starch which are amylose and amylopectin.Both are made of glucose.Amylose is generally straight and amylopectin is branched.
Bulkhead doors are generally made out of either fiber glass or polyethylene material. This makes the doors much density and durable compared to regular doors.
T-Shirts can be made from many different materials, generally they will be made from either cotton or polyester.