entertainment system , computer controlled robot Task 5 List of way in which you think electronics maybe used in the home in the future - In the future , there’ll have a robot do all the
Trang 1NHÓM 2 – LỚP Đ8-ĐTVT 2
MEMBER:
- Phạm Văn Thành
- Phạm Thị Bích Lụa
- Vũ Thị Ngát
- Nguyễn Thị Minh Thu
- Dương Thị Hồng
- Hoàng Thị Hường
-Unit 1
Task 1 make a list of things in your house which use electronic
- Fax
- Computer
- Television
- Lamp
- Printer
Task 2 Find out the meaning of these abbreviations
- IC : integrated circuit
- Hi- fi ( high –fidelity ) : high quality sound reproduction which is true
to thr orginal sound
- CD: Compact disc
Task 3
- Washing Machine
- Television
- Radio
- Microwave Oven
- Water Heater
- Record Players
- Tape Recorders
Task 4
Early 20 th century Vacuum tube Radios , television
machine
Trang 2entertainment system , computer controlled robot
Task 5 List of way in which you think electronics maybe used in the home in the future
- In the future , there’ll have a robot do all the chore
- In the future , there’ll have an infinity power source like electric
- In the future , there’ll have an 5D printer
Task 6
1 Circuit diagram and block diagram
2 Systems approach to electronics
Task 7
There are 11 symbols in fig 2 there are :
- Fixed resistor
- Capacitor
- Aerial
- Earth
- Lound speakers
- Diode
- Bipolar transistor PNP and NPN
- Ap amp
- Fixed capacitor
- Electrolytic capacitor
- Variable capacitor
Describe the value of the components :
- R2: a one kilohm resistor
- R3: a forty seven kilohm resistor
- C1: a five to sixty five picofarad variable capacitor
- C2:a hundred pico farad capacitor
- C3:a ten micro farad electrolytic capacitor
- P1: a five kilohm potentiometer
- L1:a four hundred and seventy micro henries inductor
Task 8 Describe the value of these component
- R2: a one kilohm resistor
- C1: a five to sixty five picofarad variable capacitor
- R3: a forty seven kilohm resistor
- C3:a ten micro farad electrolytic capacitor
- P1: a five kilohm potentiometer
Trang 3- L1:a four hundred and seventy micro henries inductor
Task 9
1 Consists
2 Microhenry
3 Variable
4 Variable capacitor
5 Picofarads
6 Connected
7 Diode
8 Supply
Task 10 : Work in pairs
Task 11 :
1 Is composed of
2 modulator
3 Oscillator
4 Carrier
5 Amplifier
6 Signal
7 Power
8 Aerial
Answer Question
1 The diagram of an amplitude-modulated (AM ) radio transmitter
2 It is composed of an RF oscillator , a modulator , an Rf power
amplifiler , an AF amplifier
3 The RF oscillator is connected to modulator , the AF amplifier I linked
to modulator , the modulator is connected to RF power amplifier , the microphone is linked to AF amplifier , and Rf power amplifier is connected to aerial
4 The RF oscillator generates an RF carrier wave The microphone converts sounds into audio frequency signals AF amplifier is amplifi audio frequency signals Modulator uses the amplifier AF signal to modulate the RF carrier wave Rf power amplifiler increase the power
of the modulated carrier wave