What is the meaning of electrical materials?

Question

asked Mar 11, 2018 by anonymous

87 views

Please log in or register to answer this question.

← Prev Question Next Question →

Related questions

asked Mar 10, 2018 by anonymous

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

0 like 0 dislike

68 views 0 answers

asked Sep 4, 2018 by anonymous

Classify electrical materials.

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

0 like 0 dislike

58 views 1 answer

asked Mar 11, 2018 by anonymous

What is non ferromagnetic materials?

0 like 0 dislike

46 views 0 answers

asked Mar 11, 2018 by anonymous

What materials are diamagnetic?

0 like 0 dislike

48 views 0 answers

asked Mar 11, 2018 by anonymous

What are some ferromagnetic materials?

0 like 0 dislike

81 views 0 answers

asked Mar 14, 2018 by anonymous

What kinds of materials can not electricity pass through?

0 like 0 dislike

50 views 0 answers

asked Apr 29, 2018 by anonymous

The ability of materials to become polarized under an applied electric field is called _______

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

0 like 0 dislike

94 views 1 answer

asked Apr 28, 2018 by anonymous

The bridge most suited for accurate measurement of relative permittivity of dielectric materials is

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.

0 like 0 dislike

86 views 1 answer

asked Mar 19, 2020 by anonymous

Classification of insulating materials as per IS 8504- 1994

0 like 0 dislike

207 views 0 answers

asked Apr 30, 2018 by anonymous

_________ is used for heating non -conducting materials.

_______ 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.

0 like 0 dislike

2.6k views 1 answer

asked May 7, 2020 by anonymous

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

0 like 0 dislike

53 views 1 answer

asked Apr 16, 2020 by anonymous

State factors affecting the life of insulating materials.

0 like 0 dislike

90 views 0 answers

asked Sep 4, 2018 by anonymous

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.

0 like 0 dislike

40 views 1 answer

asked May 8, 2018 by anonymous

The electric breakdown strength of insulating materials depends on

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

0 like 0 dislike

472 views 1 answer

asked Mar 25, 2018 by anonymous

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.

0 like 0 dislike

128 views 1 answer

asked Aug 17, 2019 by anonymous

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.

0 like 0 dislike

41 views 1 answer

asked Sep 4, 2018 by anonymous

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.

0 like 0 dislike

44 views 1 answer

asked May 7, 2020 by anonymous

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.

0 like 0 dislike

63 views 1 answer

asked Jan 6 by anonymous

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.

0 like 0 dislike

12 views 1 answer

asked May 7, 2020 by anonymous

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.

0 like 0 dislike

50 views 1 answer

asked Aug 4, 2019 by anonymous

State any four dielectric materials.

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

0 like 0 dislike

38 views 1 answer

asked Sep 4, 2018 by anonymous

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.

0 like 0 dislike

121 views 1 answer

asked Apr 29, 2018 by anonymous

Magnetostrictive materials can convert ________

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

0 like 0 dislike

40 views 1 answer

asked Mar 25, 2018 by anonymous

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.

0 like 0 dislike

338 views 1 answer

asked Mar 25, 2018 by anonymous

Those magnetic materials are best suited for making armature and transformer cores which have...

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.

0 like 0 dislike

105 views 1 answer

asked Apr 26, 2020 by anonymous

What is the advantage of AC over DC electrical transmission?

0 like 0 dislike

63 views 0 answers

asked Jun 1, 2019 by anonymous

What is the function of an electrical filter ?

Last answer: Filter separates different components that are mixed together. Electrical filter can separate different frequency components. Electrical filters are the electrical circuits which are use to remove unwanted frequency components from the signal.

0 like 0 dislike

4.9k views 1 answer

asked Mar 10, 2018 by anonymous

What is the definition of an electrical system?

0 like 0 dislike

51 views 0 answers

asked Mar 10, 2018 by anonymous

What is the electrical instrumentation?

0 like 0 dislike

52 views 0 answers

asked Mar 10, 2018 by anonymous

What is the difference between linear and nonlinear electrical loads?

0 like 0 dislike

1.1k views 0 answers

asked May 22, 2019 by Adnan abbas

What is electrical engineering

0 like 0 dislike

97 views 0 answers

asked Oct 15, 2018 by anonymous

What is electrical circuit ?

Last answer: An electric circuit is the interconnection of electrical elements. Electrical elements like battery, lamp, wire etc.

0 like 0 dislike

94 views 1 answer

asked Mar 10, 2018 by anonymous

What is a node in an electrical circuit?

Last answer: a positively charged electrons

0 like 0 dislike

260 views 2 answers

asked Mar 10, 2018 by anonymous

What is electrical instruments?

0 like 0 dislike

61 views 0 answers

asked Mar 10, 2018 by anonymous

What is a drive in electrical controls?

0 like 0 dislike

61 views 0 answers

asked Aug 2, 2019 by anonymous

What are the main electrical equipment used in HPS ? State the function of each parts of it in brief.

Last answer: Following Main Electrical Equipment used in HPS & their function: 1. Alternator 2. Exciter 3. Transformer 4. Switchgear Function : 1) Alternator:- Alternator is coupled to ... part from the healthy section. It contains circuit breaker, relays, switches and other control devices.

0 like 0 dislike

92 views 1 answer

asked Mar 10, 2018 by anonymous

What does BIL stand for in electrical terms?

Last answer: BIL stands for Basic Insulation Level.

0 like 0 dislike

77 views 1 answer

asked May 8, 2018 by anonymous

kWh meter is the electric meter that measures the amount of electrical _________ in kWh that

kWh meter is the electric meter that measures the amount of electrical _________ in kWh that was consumed in the house. (A) Energy (B) Current (C) Voltage (D) None of the above

Last answer: kWh meter is the electric meter that measures the amount of electrical Energy in kWh that was consumed in the house.

0 like 0 dislike

61 views 1 answer

asked Mar 25, 2018 by anonymous

The resistance of a few meters of wire conductor in closed electrical circuit is?

Last answer: The resistance of a few meters of wire conductor in closed electrical circuit is practically zero.

0 like 0 dislike

135 views 1 answer

asked Jul 30, 2019 by anonymous

Why earthing is essential in electrical installation ? Explain any one type of earthing.

Last answer: Following reasons earthing is essential in electrical installation : 1. To provide an alternative path for the leakage current to flow towards earth. 2. To save human life from danger of electrical shock ... G.I. pipe of size 19mm and funnel for pouring the water in earth pit when required.

0 like 0 dislike

253 views 1 answer

asked Mar 24, 2018 by anonymous

Power factor of an electrical circuit is equal to?

Last answer: Power factor of an electrical circuit is equal to R/Z, cosine of phase angle difference between current and voltage, kW/kVA.

0 like 0 dislike

155 views 1 answer

asked Oct 5, 2017 by anonymous

is efficiency of transformer is greater than electrical machine and why?

Last answer: The efficiency of transformer is Greater than electrical Machine because there is no rotational losses in transformer and there is no air gap losses in transformer so losses is less in transformer compare to electrical machine so efficiency is higher in case of transformer.

3 like 0 dislike

106 views 3 answers

asked May 8, 2018 by anonymous

In fuel cell the __________ energy is converted into electrical energy.

In fuel cell the __________ energy is converted into electrical energy. (A) Mechanical (B) Chemical (C) Heat (D) Sound

Last answer: In fuel cell the Chemical energy is converted into electrical energy.

0 like 0 dislike

99 views 1 answer

asked May 8, 2018 by anonymous

_______ electric power is the most common method used by electrical grids to transfer power.

_______ electric power is the most common method used by electrical grids to transfer power. (A) One-phase (B) Two-phase (C) Three-phase (D) None of the above

Last answer: Three-phase electric power is the most common method used by electrical grids to transfer power.

0 like 0 dislike

62 views 1 answer

asked Mar 25, 2018 by anonymous

When an alternating current passes through an ohmic resistance the electrical power converted into heat is?

Last answer: When an alternating current passes through an ohmic resistance the electrical power converted into heat is true power.

0 like 0 dislike

384 views 1 answer

asked Mar 21, 2018 by anonymous

The electrical power to a meggar is provided by?

Last answer: The electrical power to a meggar is provided by permanent magnet D.C. generator.

0 like 0 dislike

66 views 1 answer

asked May 8, 2018 by anonymous

A circuit breaker is designed to protect an electrical circuit from damage caused by :

A circuit breaker is designed to protect an electrical circuit from damage caused by : (A) Over load (B) Short circuit (C) Over current (D) All of the above

Last answer: A circuit breaker is designed to protect an electrical circuit from damage caused by : (A) Over load (B) Short circuit (C) Over current (D) All of the above

0 like 0 dislike

75 views 1 answer

asked Mar 25, 2018 by anonymous

Silicon steel is used in electrical machines because it has?

Last answer: Silicon steel is used in electrical machines because it has low hysteresis loss.

0 like 0 dislike

135 views 1 answer

asked Mar 10, 2018 by anonymous

Why is it cheaper to transmit electrical energy at high voltage?

Last answer: Because of the electrical energy was step upped by transformers the transformer have high efficiency than the electric energy is cheaper

0 like 0 dislike

116 views 1 answer

asked May 7, 2020 by anonymous

Explain the suitability of aluminium as an electrical conductor with respect to its mechanical and electrical properties.

Last answer: Following are requirements of conductor:- i) High conductivity : Material should have high conductivity, So that * cross section of conductor (size) reduces, * Copper losses reduces, * So Efficiency ... . Boiling point is 1820°C 9. Specific gravity is 2.7 10. High resistance to corrosion.

0 like 0 dislike

74 views 1 answer

What is the meaning of electrical materials?

Please log in or register to add a comment.

Please log in or register to answer this question.

0 Answers

Related questions