How to write joules per metre squared per second

  • Thread starter autodidude
  • Start date
  • #1
333
0
This was a question I had in another post, but the main topic was on a similar but different issue...

If I had the dimensions joules per metre squared per second (e.g. like for a solar panel), how would I write that?

I've been told
[tex]\frac{Js}{m^2}[/tex]

But I get [tex]\frac{J}{m^2s}[/tex]

Why is it this:
[tex]\frac{J}{1} \times \frac{s}{m^2}[/tex]
And not:
[tex]\frac{J}{m^2} \times \frac{1}{s} [/tex]

I'm grouping joules over metre squared together whereas everyone I've talked to does the first one - why? And am I wrong for saying 'per metre per second'? Should time come first? What is the convention here?

Thank you
 

Answers and Replies

  • #2
390
1
If you mean that each second you are receiving 'x' joules of energy over each square meter then [itex] \frac{J}{m^2 s} [/itex] are the correct units.
 
  • #3
1,506
18
I agree with JHamm... you have it correct J/m^2s not Js/m^2
It means Watts per square metre which makes sense when talking about solar panels.
 

Related Threads on How to write joules per metre squared per second

Replies
9
Views
15K
Replies
9
Views
11K
  • Last Post
Replies
5
Views
8K
  • Last Post
Replies
16
Views
48K
  • Last Post
Replies
1
Views
2K
Replies
8
Views
22K
  • Last Post
Replies
1
Views
6K
  • Last Post
Replies
3
Views
2K
Replies
16
Views
4K
Top