What is non ferromagnetic materials?

Related Questions

Description : What are some ferromagnetic materials?

Description : What materials are diamagnetic?

Description : What is the meaning of electrical materials?

Description : Magnetic and Non-magnetic Materials

Last Answer : We have now looked at a number of ways in which matter can be grouped, such as into metals, semi-metals and non-metals; electrical conductors and insulators, and thermal conductors and insulators. ... information must be stored, in computers and TV's, as well as in generators and electric motors.

Description : _______ is used for heating non -conducting materials.  (1) Eddy current heating (2) Arc heating (3) Induction heating (4) Dielectric heating

Last Answer : Dielectric heating is used for heating non -conducting materials. 

Description : What materials are interior doors made of?

Last Answer : What materials are interior doors made of? The door leaf material is a key component that influences the quality and cost of the door. Interior doors made of walnut or oak look great and ... relevant for office doors, but they are also installed in residential premises if necessary to reduce costs.

Description : State the insulating materials used in motor. Write temperature class and withstand temperature ranges for them. 

Last Answer : The insulating materials used in motor are as belows: 1. Cotton, 2. Silk, or paper, 3. Press board, 4. Resins 5. PVC 6. Cellulose-Fiber, 7. Enameled coating, etc  ... Over 180° Mica, porcelain, ceramics, glass quartz, asbestos, treated glass fiber or treated asbestos. etc.

Description : State the type of insulating materials under Class Y and Class B.

Last Answer : The type of insulating materials under Class Y : 1. Cotton  2. Silk 3. Paper 4. Rubber 5. PVC The type of insulating materials under Class B: 1. Backelite 2. Impregnated varnish 3. Mica 4. Fiber glass 5. Asbestos 

Description : List any four materials used for pattern making

Last Answer : The various types of materials used are as follows: 1. Wood 2. Metal. 3. Plastic. 4. Plaster. 5. Wax.

Description : State factors affecting the life of insulating materials.

Description : Classification of insulating materials as per IS 8504- 1994

Description : State properties of insulating materials.

Last Answer : (i) Resistivity should be very high. (ii) It should be water resistant. (iii) It should not contain impurities. (iv) It should not be affected chemically and not corroded easily. (v) Its ... It should be mechanically strong (tensile strength should be more). (vii) It should not be porous.

Description : State any four dielectric materials.

Last Answer : Ceramics, distilled water, paper, mica, polyethylene, and glass. Metal oxides

Description : Classify electrical materials.

Last Answer : Classification of electrical materials: i) Conducting Materials ii) Insulating materials iii) Magnetic materials iv) Semiconducting materials

Description : Explain the mechanical properties of insulating materials.

Last Answer : i) Mechanical strength: Mechanical strength depends on temperature and humidity. a) Temperature: High temperature badly affects the mechanical strength of insulating material. While selecting material ... material should have property of easy moulding and machined into required shape and size.

Description : Classify magnetic materials and explain in brief.

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { ... the absence of external magnetic field. Following are the ferromagnetic materials: Iron, Cobalt, Nickel.

Description : State any four properties of conducting materials.

Last Answer : Electrical properties of conductivity materials: i) Low resistivity. ii) Low temperature coefficient of resistance. iii) High conductivity. iv) Low heat dissipation.  Mechanical properties of ... properties of conductivity materials: i) Adequate resistant to corrosion. ii) Low oxidation. 

Description : The electric breakdown strength of insulating materials depends on  (A) Nature of applied voltage (B) lmperfection of dielectric material (C) Pressure, temperature and humidity (D) All or these

Last Answer : The electric breakdown strength of insulating materials depends on  (A) Nature of applied voltage (B) lmperfection of dielectric material (C) Pressure, temperature and humidity (D) All or these

Description : Magnetostrictive materials can convert ________ A) Magnetic energy into kinetic energy B) Kinetic energy into magnetic energy C) Both A and B D) None of these

Last Answer : Magnetostrictive materials can convert ________ A) Magnetic energy into kinetic energy B) Kinetic energy into magnetic energy C) Both A and B D) None of these

Description : The ability of materials to become polarized under an applied electric field is called _______ A) Ferroelectricity B) Paraelectricity C) Polectricity D) None of these

Last Answer : The ability of materials to become polarized under an applied electric field is called Paraelectricity

Description : The bridge most suited for accurate measurement of relative permittivity of dielectric materials is (A) Carey Foster Bridge (B) Anderson’s bridge (C) Heaviside Bridge modified by Campbell. (D) Schering Bridge.

Last Answer : The bridge most suited for accurate measurement of relative permittivity of dielectric materials is Schering Bridge.

Description : Insulating materials have the function of?

Last Answer : Insulating materials have the function of preventing an open circuit between the voltage source and the load.

Description : Those materials are well suited for making permanent magnets which have _____ retentivity and _______ coercivity.

Last Answer : Those materials are well suited for making permanent magnets which have high retentivity and high coercivity.

Description : Those magnetic materials are best suited for making armature and transformer cores which have____permeability and_______hystersis loss.

Last Answer : Those magnetic materials are best suited for making armature and transformer cores which have high permeability and low hystersis loss.

Description : What kinds of materials can not electricity pass through?

Description : Explain the electrical losses of magnetic materials used for the cores of inductors and transformer.

Description : The relative permeability is less than unity is case of (a) ferromagnetic materials (b) ferrites (c) non-ferrous materials (d) diamagnetic materials

Last Answer : (d) diamagnetic materials

Description : Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

Last Answer : (c) slightly more than unity

Description : Ferrites are materials. (a) paramagnetic (b) diamagnetic (c) ferromagnetic (d) none of the above

Last Answer : (c) ferromagnetic

Description : What characteristics do all ferromagnetic materials have in common?

Last Answer : The relative ease with which they are magnetized

Description : Ferrites are (A) ferromagnetic material. (B) ferrimagnetic materials. (C) anti ferromagnetic material. (D) diamagnetic materials.

Last Answer : (A) ferromagnetic material.

Description : The critical temperature above which the ferromagnetic materials loose their magnetic property is known as (A) hysterisis. (B) Curie point. (C) transition temperature. (D) standard temperature.

Last Answer : (B) Curie point

Description : Define Ferromagnetic materials. Draw B- H Curve.

Last Answer : Ferromagnetic materials: The materials which possess magnetism in the absence of applied magnetic field is known as ferromagnetic materials.

Description : Define ferromagnetic and ferrimagnetic materials.

Last Answer : Ferromagnetic materials: The materials which possess magnetism in the absence of applied magnetic field is known as ferromagnetic materials. Example: iron, nickel, cobalt Ferrimagnetic ... a spontaneous magnetization. Example: Magnetite, Ferrous ferrite, Nickel ferrite, Manganese ferrite.

Description : In ferromagnetic, anti -ferromagnetic and ferrimagnetic materials, the atomic thermal motions counteract the coupling forces between the adjacent atomic dipole moments, thereby causing (a) Some dipole misalignment ... on dipole alignment (d) Atoms tend to de -randomize the direction of moments

Last Answer : In ferromagnetic, anti -ferromagnetic and ferrimagnetic materials, the atomic thermal motions counteract the coupling forces between the adjacent atomic dipole moments, thereby causing Some dipole misalignment regardless of whether an external field is present

Description : The dielectric strength of ferromagnetic materials depends to a large extent on (a) Intensity of electric field (b) Presence of magnetic materials in vicinity (c) Area of hysterisis loop for materials (d) Frequency of applied voltage

Description : Iron is what type of magnetic material? Is it: w) diamagnetic x) paramagnetic y) ferromagnetic z) non-magnetic

Last Answer : ANSWER: Y -- FERROMAGNETIC 

Last Answer : The magnetic materials exhibit the property of magnetisation because of spin of nucleus.

Last Answer : slightly more than unity

Last Answer : Materials subjected to rapid reversal of magnetism should have high permeability and low hysteresis loss.

Last Answer : The materials having low retentivity are suitable for making temporary magnets.

Last Answer : Effect of moisture on the insulating materials is to decrease dielectric constant, decrease dielectric strength, decrease insulation resistance, increase dielectric loss.

Last Answer : Low resistivity materials are used in transformer, motor and generator windings, transmission and distribution lines, house wiring.

Description : Piezoelectric materials serve as a source of _____ .

Last Answer : Piezoelectric materials serve as a source of ultrasonic waves.

Description : High resistivity materials are used in?

Last Answer : High resistivity materials are used in precision instruments, heating elements, motor starters, incandescent lamps.

Last Answer : Non-linear resistors produce harmonic distortion.

Description : Ferrites are a sub-group of (a) non-magnetic materials (6) ferro-magnetic materials (c) paramagnetic materials (d) ferri-magnetic materials

Last Answer : (d) ferri-magnetic materials

Description : For MPI using the prods method which of the following statements is true: a) It may cause arc damage on the specimen material surface b) It requires fewer operators therefore is easier c) ... be used with ferritic and non-ferritic materials d) It is quicker than using a yoke type electromegnet

Last Answer : a) It may cause arc damage on the specimen material surface

Description : Which of the following statements is/are correct? 1. A materials requisition note is used to record the issue of direct material to a specific job. 2. A typical job cost will contain actual costs for material, labour and production ... 1) and (2) only (c) (1) and (3) only (d) (2) and (3) only

Last Answer : (c) (1) and (3) only

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