Navigate

The unit of thermal conductivity is

The unit of thermal conductivity is

Options

(a) Wm⁻¹K⁻¹
(b) JK⁻¹
(c) WmK
(d) JK

Correct Answer:

Wm⁻¹K⁻¹

Explanation:

The heat current related to difference of temperature across the length l of a conductor of area A is
dH/dt = KA / ℓ ∆T (K=Coefficient of thermal conductivity)
.·. K = ℓ dH / A dt ∆T
Unit of K = W m⁻¹ K⁻¹.

admin:

Related Questions

  1. Under the action of a force F=cx, the position of a body changes from 0 to x.The work done
  2. A block of 2 kg is kept on the floor. The coefficient of static friction is 0.4
  3. The body of mass m hangs at one end of a string of length l, the other end of which
  4. If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string
  5. The ratio of specific charge of an α-particle to that of a proton is