Search found 11 matches

by jonnyquin
Sun Feb 17, 2013 2:36 am
Forum: Introduction to Modern Electronics
Topic: #10 Schematics & Documentation [Post Homework Here]
Replies: 5
Views: 10670

Re: #10 Schematics & Documentation [Post Homework Here]

HOMEWORK QUESTION 1 What is the difference between a datasheet and a schematic? Datasheet provides valuable information about an specific component and a schematic shows the actual lay out of a circuit HOMEWORK QUESTION 2 What is the circuit symbol for a power supply? http://www.easyvectors.com/asse...
by jonnyquin
Thu Feb 07, 2013 1:02 am
Forum: Introduction to Modern Electronics
Topic: #9 The 555 Timer [Post Homework Here]
Replies: 6
Views: 13117

Re: #9 The 555 Timer [Post Homework Here]

HOMEWORK QUESTION 1 What are two uses of the 555 timer? Proximity alarm and music keyboard HOMEWORK QUESTION 2 How many pins does a standard LM555 timer IC have and what are the names of each pin? eight! 1=Ground, 2=trigger, 3= output, 4=reset, 5=control Voltage, 6= Threshold, 7=discharge, 8= Vcc (+...
by jonnyquin
Thu Feb 07, 2013 12:31 am
Forum: Introduction to Modern Electronics
Topic: #8 The OpAmp [Post Homework Here]
Replies: 13
Views: 17362

Re: #8 The OpAmp [Post Homework Here]

HOMEWORK QUESTION 1 What are two uses for Op-Amps? Inverting and summing HOMEWORK QUESTION 2 What are the two main types of amplifier configurations used with Op-Amps? Inverting and non-inverting HOMEWORK QUESTION 3 How can an Op-Amp be used as a comparator? A ‘comparator’ is an circuit that compare...
by jonnyquin
Thu Feb 07, 2013 12:06 am
Forum: Introduction to Modern Electronics
Topic: #7 The Transistor [Post Homework Here]
Replies: 4
Views: 10177

Re: #7 The Transistor [Post Homework Here]

HOMEWORK QUESTION 1 What is a transistor? Why did the transistor lead to the digital revolution? An electronic semiconductor device that is made of doped materials, and often used in switching or amplifying applications. It permited more sofisticated circuits in less space, providing the necesary ba...
by jonnyquin
Wed Feb 06, 2013 12:04 am
Forum: Introduction to Modern Electronics
Topic: #6 The Diode [Post Homework Here]
Replies: 7
Views: 14543

Re: #6 The Diode [Post Homework Here]

HOMEWORK QUESTION 1 What are some differences between a LED and a rectifier diode? LED emits light when conducting, whereas rectifier diode doesn’t emit. LEDs are often used as light sources, and rectifier diodes are used in rectifying applications. Materials used in rectifier diodes and LED’s have ...
by jonnyquin
Tue Feb 05, 2013 11:21 pm
Forum: Introduction to Modern Electronics
Topic: #5 The Inductor [Post Homework Here]
Replies: 6
Views: 11689

Re: #5 The Inductor [Post Homework Here]

HOMEWORK QUESTION 1 Can you name 4 different types of inductors? Ferrite coil, copper coil, air coil and variable HOMEWORK QUESTION 2 How do inductors store electrical charge? By means of an electromagnetic field HOMEWORK QUESTION 3 How do capacitors and inductors store electrical charge differently...
by jonnyquin
Fri Feb 01, 2013 11:42 pm
Forum: Introduction to Modern Electronics
Topic: #2 Electricity [Post Homework Here]
Replies: 15
Views: 22538

Re: #2 Electricity [Post Homework Here]

Aye! hahaha! well, i couldn´t keep the secret any longer...Actually I´m on the western african shore..the Canary Islands. That´s the voltage we use know though 40 or 50 years ago 110V was very common
by jonnyquin
Fri Feb 01, 2013 11:36 pm
Forum: Introduction to Modern Electronics
Topic: #4 The Capacitor [Post Homework Here]
Replies: 8
Views: 12286

Re: #4 The Capacitor [Post Homework Here]

HOMEWORK QUESTION 1 Can you name three (3) different types of capacitors? Electrolityc, ceramic and tantalium HOMEWORK QUESTION 2 What ‘Units’ are used to describe a capacitor’s capacitance? Farads HOMEWORK QUESTION 3 Convert the value of 2.2μF (micro-Farad) into pF (pico-Farad), mF (milli-Farad) an...
by jonnyquin
Fri Jan 25, 2013 1:25 am
Forum: Introduction to Modern Electronics
Topic: #3 The Resistor [Post Homework Here]
Replies: 9
Views: 13883

Re: #3 The Resistor [Post Homework Here]

HOMEWORK QUESTION 1 What is electrical resistance? It´s a force of opposition to the flow of electrons that a material posseses HOMEWORK QUESTION 2 What ‘Units’ are used to describe electrical resistance? The unit is Ohms( Ω ) HOMEWORK QUESTION 3 Convert the value of 100,000Ω into Kilo-Ohm and Milli...
by jonnyquin
Fri Jan 25, 2013 1:09 am
Forum: Introduction to Modern Electronics
Topic: #2 Electricity [Post Homework Here]
Replies: 15
Views: 22538

Re: #2 Electricity [Post Homework Here]

HOMEWORK QUESTION 1 What is Electricity? A flow of electrons (electric current) from one point to another HOMEWORK QUESTION 2 What ‘Units’ are used to describe electrical Voltage, Current and Power? (Hint: ‘Units’ of length are commonly in meters, inches, feet or miles) Voltage is meassured in Volts...
by jonnyquin
Fri Jan 25, 2013 12:57 am
Forum: Introduction to Modern Electronics
Topic: #1 The Introduction [Post Homework Here]
Replies: 21
Views: 35511

Re: #1 The Introduction [Post Homework Here]

HOMEWORK QUESTION 1 Why are you taking this course? To refresh past subjects and build up the foundations of my skills in electronics HOMEWORK QUESTION 2 What do you hope to do with the knowledge you gain through this course? Repair all sorts of stuff and may be build a few dark machines...muahahaha...

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