Physics 13.3.2a - Joule`s Law

Joule's Law. From the Physics course by Derek Owens.

Category:

Education

Tags:

• Physics
• Joule
• Joules
• Joules Law
• Joule's Law
• James Joule
• Joule heating
• power
• electric power
• homeschool
• distance learning
• Derek Owens

[gouhuskies]

So, I'm confused.

Is Joule's Law H = I^Rt or is it P= I^R? (Sorry I have to use the ^ symbol for squared) or is it both depending on whether or not you're looking for power vs. heat?

[derekowens]

@gouhuskies I think I can clear that up. First, the notation: when typing, we usually use the ^ symbol to indicate an exponent, so I^2 would be "I squared".

That said: P = I^2 R would an equation for Power.

H = I^2 R t would be an equation for energy (or heat) and that's the equation we call Joule's Law.

[COMPUTEREXPECT]

which software u used for making diagrams



[B1itZKr3iGC4]

@derekowens i found this to be very good even though its more like a refresher to me it doesnt hurt to reread or rethink or even remind yourself what you know what you dont

[B1itZKr3iGC4]

@derekowens nice channel i recently went to classes in highschool about four years back that was supoosed to allow the students to gain a certification to work on electronics legally in the US unfortunately the state stopped paying for the class because some ppl dropped out they said theyd pay for the certification tests only if 25ppl attended never flunked or left the class

[kafeelmujahid]

bazoooka

[joe5178]

thanks

[Balajimt]

@gouhuskies P= I^R whereas heat is the work done (power . time= work) therefore H = I^Rt

[ankithutch]

WoW so basically structured the video thanks.....

[badrijutt]

thanks dear sir