Question

uction
EXERCISE-1
n steady state condition, the temperatures at the two ends of a metal rod of length 25 cm a
nd 0°C. Then temperature at a point 8cm from the hot end is
-) 68°C
2) 40°C
3) 32°C
4) 60°C
Acopper bar 2m long has a circular cross section of radius 1 cm. One end is kept at 100°C a
ler at o°C. It is assumed that negligible heat is lost through the surface. (a) The thermal resi
bar is (b) The temperature gradient is (c) The temperature at 25 cm from the hot end w
(K = 400 SI units)
) 159 K/W, 50 K/m, 8.75°C
3) 1.59 K/W, 500 K/m, 8.75°C
Four rods of same
of heat with the same
2) 15.9 K/w, 50 K/m, 87.5°C
4) 159 K/w, 5 K/m, 8.750°C
o same material but with different radii and lengths are used to connect two reserv.
the same temperature difference. Which one will conduct more heat
2) r=1cm, 1 = 2m 3) r=1cm, l= m
Dr=1cm, 1=lm
rod of length im hava
mperature differe
4) r=-- cm, 1=--m
" having cross-sectional area 0.75 m² conducts heat at 6000 Is
Then th​

Answer 1

Explanation:

how to find the polarity of an object