Question

In steady condition, the temperature at ends at the two ends of a metal rod of length 25 cm are 100 V and 0${}^{0}C$ then temperature at a point 8 cm from the hot end is:

• A. 68${}^{0}C$
• B. 40${}^{0}C$
• C. 32${}^{0}C$
• D. 60${}^{0}C$

Answer 1

Answer: (A)

68${}^{0}C$

As its given in a steady state condition .

then change in temperature is linearly proportional to its length .

the temp will be calculated by the following formula

t = 100 – ( 100-0 /25 * 8 )

t = 68

so, the temp will be 68 degree here .