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Unit 9
DIRECT CURRENT GENERATORS AND MOTORS
No Terms English Vietnamese
1 Conversion Changing Sự chuyển đổi
2 Torque The agency producing or tending to produce torsion Moment lực
3 Mounted (on sth) Fixed, positioned Gắn lên
4 Wedge An object the side of which is similar in shape to an isosceles triangle with an apex of less than 60o Cái chốt
5 Clamping flanges A projecting edge being fasten tightly for strengthening or attachment purposes Kẹp đàn hồi
6 Segment On of a series of separable parts which together form the whole Đoạn
7 Spider The central part of the armature core Đế hình sao
8 Angle of shift Angle through which the brushes must be moved to change their position Góc nâng
9 Yoke A joining or coupling element Bệ đựng nam châm
10 Isosceles Triangle A triangle in which two of the sides are conguent (equal) Tam giác cân
11 Apex The tip, top, point, or angular
summit of anything
Đỉnh cao nhất
12 Armature One of the two principal electrical components of an electromechanical machine--a motor or generator
Cảm ứng
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rence of electric potential between two points of a conducting wire carrying a constant current of 1 ampere when the power dissipated between these points is equal to 1 wattVôn (đơn vị điện thế và sức điện động)
14
The ohm
Electrical resistance between two points of a conductor when a constant difference of potential between these two points produces in the conductor a current of 1 ampere
Ôm (đơn vị điện trở)
15
The coulomb
Quantity of electricity transported in 1 second by a current of 1 ampere
Culông
UNIT 4
ELECTRICAL ENERGY AND POWER ELECTRIC CIRCUIT
No
Terms
Definition
1
In series
Way of connecting components “end to end”, so that the current flows through each in turn
Mắc nối tiếp
2
Configuration
Arrangement of part
Sắp xếp bộ phận
3
In parallel
Components connected so that each receives the full voltage at the same time, with part of the current flowing each in turn
Mắc song song
4
Kinetic
relating to motion: relating to, caused by, or producing motion
(thuộc) chuyển động
5
Potential
Possible; that might exist
Tiềm năng, có khả năng
6
Reciprocal
The value obtained by dividing a number into 1, as in…
Nghịch đảo
7
Circuit
A network with at least one part that can be closed
Mạch
8
Friction
Force that tries to stop one thing moving over or through another
Lực ma sát
9
Loop
A simple closed connection, part of a network or circuit
Vòng dây (mạch kín)
10
Conductance
Reciprocal of resistance
Trở kháng
11
The principle of the conversion of energy
Energy can be transformed or transmitted into one system to another but the total value of the energy before and after the transformation is always the same
Định luật bảo toàn năng lượng:
12
Kinetic energy
The energy possessed by a mass by virtue of its motion
Động năng
13
Potential energy
Energy which a system possesses by virtue of the relative position of its parts or its configuration
Thế năng
14
Translation
The process of moving something from one place to another
Sự chuyển dịch
15
By virtue of
Do, theo
16
Opposite sign
Trái dấu
17
Power
The amount of energy transformed or transmitted per unit of time
Công suất
18
Passage of electrons
A flow of electrons through a circuit
Dòng electron
19
Joule’s law
P = R.I2
The heat energy produced in a unit of time is proportional to the resistance and to the square of the current
Định luật Jun: Nhiệt năng sinh ra trong một đơn vị thời gian tỉ lệ thuận với điện trở và tỉ lệ nghịch với bình phương cương độ dòng điện
20
The power loss
The electric power that changed into heat
Công hao phí
21
Voltage drop
The difference of potential across the terminals of the wire
Sự giảm thế
22
Conductance
a measure of the ability of an object or substance to transmit electricity, expressed as the reciprocal of resistance
Độ dẫn điện
23
Kirchhoff’s first law
In an electric network, the algebraic sum of the current that meet at a junction point is zero
Trong một mạng điện, tổng đại số của dòng điện tại điểm nút bằng 0
Định luật 1 Kirchhoff
24
Kirchhoff’s second law
The sum of the products of current and resistances in each part of any closed loop in a network is equal to the algebraic sum of the electromotive forces in that loop
Định luật 2 Kirchhoff
UNIT 5
ELECTROCHEMISTRY- ELECTROLYSIS
PRIMARY AND SECONDARY CELLS
ELECTROMOTIVE FORCE
No
Term
Explanation
1
Electrochemistry
A branch of chemistry that studies chemical change associated with electrons and electricity
Điện hóa học
2
Electrolysis
The conduction of electricity through sth melted or dissolved in order to induce decomposition of the melted or dissolved chemical into its components
Sự điện phân
3
Electromotive force
A force that causes the flow of electricity from one point to another
Suất điện động
4
Electrolyte
A chemical compound that separates into ions in a solution or when molten, and is able to conduct electricity
Chất, dung dịch điện phân
5
Electrode
A conductor through which electricity enters or leaves sth such as a battery or a piece of electrical equipment
Điện cực
6
Anode
The positive electrode in an electrolytic cell
Điện cực dương
7
Cathode
The negative electrode in an electrolytic cell
Điện cực âm
8
Dissociate
Split sth into simpler parts
Tách, phân ra
9
Electrolytic dissociation
Sự phân li chất điện phân
10
Liberate
To release sth such as gas from combination in a chemical compound during a chemical reaction
Giải phóng
11
Deposit
To cover
Phủ vào
12
Electroplate
Coat a surface with a metal (usually silver) by electrolysis
Mạ
13
Soluble
Able to dissolved in another substance
Có thể hòa tan
14
Metallic conduction
Dẫn điện kim loại
15
Electronic conduction
Dẫn điện điện tử
16
Convection effect
Hiệu ứng đối lưu
17
Primary cell
An electrical cell that uses an irreversible chemical reaction to generate electricity and can not be recharged
Pin sơ cấp
18
Secondary cell
An electric cell in which electricity is produced by a reversible chemical reaction. Therefore, it is rechargeable and able to store electrical energy.
Pin thứ cấp
19
Displacement
Moved from one place to another
Sự dịch chuyển
20
Fused
Melted, made into liquid by heat
Nóng chảy
21
Accumulator
Storage cell
Awcsqui có thể nạp, sạc
22
Reverse- type cell
Primary cell that may be activated by the addition of an electrolyte
Pin dự trữ, pin đảo chiều
23
Fuel cell
Cell that produces electricity by the oxidation of a fuel used in space vehicles
Pin nhiên liệu
24
Dilute
Mixed with water
Pha loãng
25
Battery
Two or more cells connected in series or in parallel
Pin
26
Inter- conversion
The mutual conversion from between 2 things
Chuyển đổi, trao đổi
27
Medium
Sth used to achieve sth else
Substances through which force, etc passes
Phương tiện, môi trường
28
Voltaic
Pertaining to electricity produced by chemical action or by surface contact and friction
29
Aqueous
Watery
Thuộc về nước
30
Table salt
Fine salt suitable for use on food that has been served out
Muối ăn
31
Regenerate
Form again
Tái tạo, khôi phục
32
Electrochemical equivalent
The mass of a substance deposited from solution by one coulomb of electric charge
Đương lượng hóa học
33
Spongy lead
Chì xốp
34
Distill
To purify a liquid by boiling it and then condensing its vapor, or undergo purification in this way
Chưng cất
35
Distilled water
Nước cất
36
Reduction
A chemical reaction that brings about a gain in hydrogen, a loss of oxygen or an increase in electrons
Sự khử
37
Oxidation
The process of losing electrons from a chemical element or compound
Sự oxi hóa
38
Redox reaction
Phản ứng oxi hóa khử
UNIT 6
ELECTROSTATICS- ELECTRIC FIELDS- CAPACITOR
No
Term
Explanation
1
Vector
A physical quantity for which we must state a direction to define it completely
Vec-tơ
2
Disproportionate charge
A charge of unsuitable proportions
Điện tích không phù hợp
3
Farad
Unit of capacitance
Đơn vị điện dung
4
Capacitor
Device that gives capacitance , usually consisting of conducting plates
Tụ điện
5
Capacitance
The ability of a substance to store an electric charge
The ratio between charge and potential difference: C= Q/ V
Điện dung
6
Neglect
Take no account of, disregard
Bỏ qua
7
Equipotential
No potential difference between any 2 points of conducting body
Đẳng thế
8
Polarization charges
Charges on the surfaces of an insulator
Điện tích phân cực
9
Electric field
A space in the stressed condition
Region around an electric charge in which an electric force is exerted on another charge
Điện trường
10
Electrostatics
The study of the behavior of electricity when it is static
Tĩnh điện học
11
Electric field strength
The force exerted by the field on an unit positive charge at that point
Cường độ điện trường
12
Dielectric constant
Hằng số điện môi
13
Relative permittivity
Hằng số điện môi tương đối
14
Adjacent
Situated near or close to sth or each other, especially without touching
Gần kề, lân cận
15
Impregnate
Saturate material: To incorporate a chemical into a porous material such as wood or cloth, especially by soaking it thoroughly with a liquid
Giấy tẩm hóa chất
16
Resultant
Tổng hợp
17
Insulated conducting body
Vật dẫn điện cô lập
18
Nullify
To mak...
