Ohm's Law

This is a very important thing to know if you're looking to get into electronics.
 Ohms is the measurement used for the amount of resistance of a resistor.

Step 1 The Formula

V=IR

Is the formula which is Ohm's law. According to this formula, V=IR, I=V/R, and R=V/I.
V means voltage, I means current, and R means resistance. So, Voltage equals Current times Resistance. To remember this, here is Ohm's Pyramid

Comments

[Justdoofus]

LED's do not explode.. Atleast not from my experience of blowing LED's out....
If you are running a high-joule capacitor bank through a tiny LED, yes, good chance that it will explode.

If LED's were able to explode, I would have made LED bombs long ago. :) Thanks for the tutorial.

[josh1324]

Ahah glad you liked it, but I guess I was kind of over-exaggerating about the "explode" part ;P

[Justdoofus]

Actually, you did do a good job explaining it! Thanks for the instructable! :P

[josh1324]

Thankyou, btw, I'm only 14;P I was 13 when i wrote this 'ible;P

[Justdoofus]

It's good. I'm 16, congratulations, and keep writing instructables... Im actually researching the mathematics and construction of electromagnetic coils. I am trying to accomplish a 2-3 tesla magnet.. The biggest magnet in the world is over 50 tesla.. To see how much one tesla is, compare the strongest neodemium magnet you can find. That's one tesla in strength.

Just think. Mine will be over 1 tesla. (Preferably 2 tesla)

Anyway. I learned something.

[josh1324]

Well, I'm glad I could help you out. I hope your magnet works well;3

[vishalapr]

This is an amazing thing that I learnt about 3 months ago, but I learnt even more when I had a look at this ible!

[kfarmer-1]

I'm 72 years old & I find this very interesting but wonder why so few people know how to spell. (The word remember in the formula is incorrectly spelled).

[josh1324]

Oh, I must have missed that. Thanks!

[hg341]

the r=v/i can be used in all areas of math and is a VERY useful tool to understand