How much heat flows per second through a well lagged bar of alummium of thermal cond7ctivity 230W ,the bar has length of 300mm and a cross sectional area of 100 mm² with a temorature difference of 40°c between the ends of the bar

The amount of heat flows per second in given aluminium bar is 3.066 .

Explanation:

We know that , amount of heat flowing per second is given by

 Where A = area =  

             K = Thermal conductivity =

             L = Length =

  Upon substituting these values in above equation we get ,

         Heat flowing per second =

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

: )

the answer is 3.1 his answer is wrong mines is right