search
person
What is antiferromagnetic material?

Related questions

Description : What material should children's furniture be made of?

Answer : The most ideal option is furniture made from natural wood. Such material is environmentally friendly, however, many varieties of valuable species are quite expensive. In view of the limited family ... your liking, because, despite its versatility and safety, it should please and bring pleasure.

Description : What is piezoelectric effect? Name two piezoelectric material.

Answer : piezoelectric effect: Piezoelectric effect can be stated as follows: when a pressure or force or vibration is applied to crystalline material like quartz crystal or crystalline substances, then ... crystal: Quartz crystal ,Rochelle salt 2) Synthetic crystals : Barium Titanate, Lithium sulphate

Description : What is amorphous metal material? Give any three properties of amorphous metal.

Answer : Amorphous metal: The amorphous is metal alloy which differ in crystalline structure. The atoms are arranged in random configuration.  Properties of amorphous metal: 1) Thermal conductivity of ... . 6) The alloy does not undergo shrinkage on solidification, which helps in bones attachments.

Description : What is dielectric strength of an insulating material? What is its unit?

Answer : Dielectric Strength: The dielectric strength of an insulating material is the maximum voltage which the insulating medium can withstand without breakdown. Unit is volts per millimeter (V/mm), or kV/mm or kV/cm

Description : What are insulating material?

Answer : Insulating material: Insulating material is that which offers very high resistance to the flow of current through it.

Description : Overalls. Which material is better?

Answer : Material is the most important factor to look out for when choosing workwear. Usually cotton, polyester or blended fabrics are chosen for the manufacture of workwear. Each option has ... , operating conditions and personal preferences. Work clothes should provide employees with comfort and safety.

Description : Suggest the diode material suitable to rectify 0.5V AC signal.

Answer : The diode material suitable to rectify 0.5V AC signal is silicon

Description : State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material. 

Answer :  (i) Application of PVC paper : 1. It is used in slot lining or motor winding insulation purpose 2. For Insulation of Transformer winding (ii) Application of Porcelain : 1. Mainly used for manufacturing ... on withstand temperature : * H' & C' Class of insulation i e. 180° and above 180°C 

Description : State gaseous and liquid insulating material.

Answer : i) Gaseous insulating material : 1. Air 2. Nitrogen 3. Hydrogen 4. SF6 ii) liquid insulating material: 1. Transformer oil 2. Capacitor oil 3. Cable oil 4. Pyranol 5. Savotal 6. Savol 7. Vegetable oil 8. Silicon liquids

Description : State the material used for making (1) Magnetic Core (2) Fuse element  

Answer : The material used for making of:  (1) Magnetic Core : Iron, cobalt, Nickel, CRGO, HRGO , silicon steel  (2) Fuse Element: Tin- lead wire, Tinned copper wire 

Description : State properties of conductor material used for overhead conductor. 

Answer : Following are the properties of conductor material:-   1. High conductivity :- Material should have high conductivity 2. High mechanical strength:- Material should have sufficiently high mechanical strength ... available & less costly. 9. Scrap Value: - Material should have high scrap value. 

Description : (i) Explain the process of diffusion in semiconductor material. (ii) Explain Hall effect.

Answer : (i) Diffusion: In a semi conductor bar a concentration gradient exist when either number of electrons or holes is greater in one region of a semi conductor as compared to other region. When ... to determine whether a semiconductor is N type or P type, and to find carrier concentration

Description : Write one application for the give dielectric material. (i) Polyvinyl Carbide(PVC) (ii) Glass (iii) Mica (iv) Cotton and Silk

Answer : (i) Polyvinyl Carbide(PVC):it is used in insulation of wires and cables in domestic wiring as well as in aircraft and factory wiring (any one)  (ii) Glass: 1) Alkaline glasses are used for ... with wax or varnishes are used in windings of magnet coils and small medium sized mechanics (any one) 

Description : State function of Busbar and which material is used for busbar?

Answer : Function of Busbar Bus-bar: - Distribute the load on 3-phase four wire systems. To provide number of connection of incoming line and to provide easy way to connect number of sub circuit. ... to the element. This element means busbar Material is used for busbar: 1. Copper 2. Alluminium

Description : Name the material used for :- (i) Moving coil (ii) Permanent magnet in PMMC instrument.

Answer : (i) Material used for Moving coil: Copper, Aluminum( some times)  (ii) Permanent magnets are made of special alloys such as :  Aluminum-Nickel-Cobalt (Alnicos)  Strontium-Iron  Neodymium-Iron-Boron  Samarium-Cobalt.

Description : State the material used for moving coil and former for PMMC instruments. 

Answer : Material Used for Moving Coil and Former for PMMC Instruments:  Material used for moving coil: Copper  Material used for Former: Aluminium

Description : Based on temperature withstanding ability, classify insulating material. 

Answer : class Temperature withstanding ability in 0C Materials Y 90 Cotton, silk paper and similar organic materials neither impregnated nor immersed in any oil, rubber, PVC. A 105 ... rubber compounds C Above 180  Mica, ceramics, glass, Teflon, quartz, etc. 

Description : List four examples of insulating material and explain any two.

Answer : Examples of insulating materials:  i) Solid: Ceramic, Porcelain, Mica, Glass, Rubber, Resinous, Fibers  ii) Liquid: Synthetic, Mineral etc.  iii) Gaseous: Hydrogen, Air, ... and low hygroscopicity.  Uses: Insulation in electric field, transformer stampings, armature, pole stampings

Description : State the four major parts of Transformer and material used for their construction.

Description : The magnetic susceptibility of paramagnetic material is: A) Less than zero B) Less than one but positive C) Greater than one D) Equal to zero

Answer : The magnetic susceptibility of paramagnetic material is: Less than one but positive

Description : The desirable properties of transformer core material are  (1) low permeability and low hysteresis loss. (2) high permeability and high hysteresis loss. (3) high permeability and low hysteresis loss. (4) low permeability and hysteresis loss.

Answer : The desirable properties of transformer core material are high permeability and low hysteresis loss.

Description : The material used in liquid fuses is  (1) SF6 (3) carbon tetra chloride (2) distilled water (4) transformer oil

Answer : The material used in liquid fuses is  carbon tetra chloride

Description : Resistance of a material always decreases if?

Answer : Resistance of a material always decreases if number of free electrons available become more.

Description : The property of a material which opposes the creation of magnetic flux in it is known as?

Answer : The property of a material which opposes the creation of magnetic flux in it is known as reluctance.

Description : If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be?

Answer : If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be large.

Description : In a magnetic material hysteresis loss takes place primarily due to?

Answer : In a magnetic material hysteresis loss takes place primarily due to it high retentivity.

Description : A material for good magnetic memory should have?

Answer : A material for good magnetic memory should have high retentivity.

Description : The relative permeability of a ferromagnetic material is?

Answer : The relative permeability of a ferromagnetic material is more than 100 or 1000.

Answer : The insulating material used between the commutator segments is normally mica.

Answer : The material for commutator brushes is generally carbon.

Answer : The material used for fuse must have low melting point and high specific resistance.

Answer : Yes, Induction heating is used for both magnetic and non-magnetic materials.

Description : From which material field coils of DC generator are made of?

Answer : Field coils of DC generator are usually made of copper.

Description : Explain hysteresis loss, eddy current loss and skin effect limitations with reference to magnetic material.

Answer : Hysteresis loss: Hysteresis loss is a loss which occurs due to the friction of magnetic domain due to the change in magnetic field in ferromagnetic material like iron. Hysteresis loss causes power loss ... loss in transformer is given by, We=Kef2Kf2Bm2watts Skin effect limitations:

Answer : The magnetic reluctance of a material decreases with increasing cross-sectional area of the material.

Answer : The retentivity (a property) of material is useful for the construction of permanent magnets.

Answer : The commonly used material for shielding or screening magnetism is soft iron.

Answer : A material which is slightly repelled by a magnetic field is known as diamagnetic material.

Answer : For a particular material, the Hall coefficient was found to be zero. The material is metal.

Answer : Surface resistance of an insulating material is reduced due to the smoky and dirty atmosphere, humidity in the atmosphere.

Answer :  Quartz is an example of piezoelectric material.

Description : Mercury as an electric contact material is?

Answer : Mercury as an electric contact material is a metal liquid.

Description : A highly conductive material must have?

Answer : A highly conductive material must have highest conductivity, lowest temperature co-efficient, good mechanical strength, good corrosion resistance, easy solderable and drawable quality.

Description : What materials are diamagnetic?

Description : What is non ferromagnetic materials?

Description : What are some ferromagnetic materials?

Description : What is the meaning of electrical materials?

Description : Ferromagnets

Answer : Ferromagnets Only certain materials, such as iron, cobalt, nickel, and gadolinium, exhibit strong magnetic effects. Such materials are called ferromagnetic, after the Latin word for iron, ... licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

Answer : Atrraction  capacity  will  increase  if  supply  current  is  increased.

Answer : Temporary magnets are used in loud-speakers,generators, motors.

← Prev Question Next Question →
editChoose topic
...