Resistor Power Ratings (explained in 5 minutes)

A video that explains the purpose of resistor power ratings and the importance of selecting the correct value.

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#Resistor #Power #Rating

[Richie_]

Subscribed for sure.
Great videos for a newbie like myself.

[franciscosanchez]

Would that ohm's still handle the power if it is in parallel? What I mean would the watts of resistor need to be the battery watts ( 12 v × total 14.5 amps ) or the devices watts R1 ( 12 v × 0.2 amps ) + R2 ( 12 v × 0.1 amps ) and more other resistors to handle the power of heat. Which way is where the resistor handles the heat watts?

[hamzakourta]

is rated voltage just the mirror image of power rating like (U = √(P x R)) or is it a different property determined by dielectric strength and similar stuff?

[kevinblanco]

this is really well done you should do op amps and mosfets

good success

[andriykopiychuk]

So, why then, when I connected 10K 0.25W resistor to the 12V battery it got hot enough to burn my finger? According to the calculations: 12v/10000 Ohms = 0.006Amps; And then 0.006A*12V = 0.072Watts. While resistor tested was 0.25W - way more then 0.072Watts required. Why is it getting melting hot?

[ejohnalarcon]

sir good pm, i ask 8 pcs led lights what resitor we use??? Thank you

[orangie]

You totally lost me when you were like suddenly...
E = MC squared math lol....
Lol