When does the general heat conduction equation which gives the temperature distribution and conduction heat flow in an isotropic solid reduce to Laplace equation?

if the body or element is in unsteady-state with heat generation

if the body or element is in steady-state with heat generation

if the body or element is in unsteady-state with no heat generation

if the body or element is in steady-state with no heat generation

When does the general heat conduction equation which gives th

1.	When does the general heat conduction equation which gives the temperature distribution and conduction heat flow in an isotropic solid reduce to Laplace equation?
A.	if the body or element is in unsteady-state with heat generation
B.	if the body or element is in steady-state with heat generation
C.	if the body or element is in unsteady-state with no heat generation
D.	if the body or element is in steady-state with no heat generation
Answer» E.