Question

10.
A heat flux of 4000 J/s is to be passed through
copper rod of length 10 cm and area of cross section
100 cm2. The thermal conductivity of copper is 400
W/m°C. The two ends of this rod must be kept at a
temperature difference of
(1)1°C
(2) 10°C
(3) 100°C
(4) 1000°C​

Answer 1

Answer:

3. 100 degree is correct answer