Retrobrad Presents! Electronics Tutorial 1 - Ohm's Law.

This is the first tutorial in a complete electronics series that I will be presenting over the coming weeks and months. The course will take you through all aspects of electronics theory - we start with the very basics and then head off into the exciting world of electronics.

Everything from ohm's law, circuit board design, logic gates and boolean algebra, diodes, transistors and integrated circuits will be covered.

And all this from someone who teaches electronics for a living!

Category:

Education

Tags:

• retrobrad
• electronics
• tutorial
• lesson
• theory
• ohm's
• law
• ohms
• ohm
• circuit
• voltage
• battery
• current

[batnex]

You make this sound about a hundred times more interesting and useful than in school. Thanks for the tutorial! It is really helpful :).

[00retrobrad00]

@batnex Thanks = )

[DaMcaAtak]

:O aussie :D!?

[00retrobrad00]

@DaMcaAtak Yeah = )

[chitii91]

Current flows from negative to positve ? i think thats the electron ... anyway  i'm starting to learn. so really appreciate this

[00retrobrad00]

@chitii91 Yes you're correct - electrons which hold a negative charge travel from negative to positive.

[TheBoringProphet]

@Elvisyoan The total current flow will be limited by a small amount of resistance designed within the 9v battery. There is also a small amount of resistance within any length of wire. Your LED operates within a small voltage range(~3 to 4 volts) and will need an appropriate sized resistor to keep it from being destroyed.

[balugags1]

i want this to download how?

[fabse64]

Tutorials with an Australian/English (not completely sure, sorry) guy? I'm going to learn so much from these!

[mirassou]

positive current goes the other way.

[JasonCarroll1000]

The world needs your kind Thanks I always wanted to get in to electronics. Just wanted to say thanks.

[IdunnoJu]

OHHH, where is part2? :O

[IdunnoJu]

@batnex you got that right :D

[ElliotScoots14]

Thanks heaps for this i got a test on Ohm's law on friday and my tafe teacher gave me a book and said to learn it. So much easyer with you. Thanks boss.

[Elvisyoan]

what would happen if there is no resistance ? and what would it be the current ? i cant figure out what would be the current if I connect a 9v battery directly to a led without a resistor .