Identify the temperature at which the resistance of copper would be do – McqOptions

MCQOPTIONS

1.	Identify the temperature at which the resistance of copper would be double of its resistance at ^oC. Given (temperature coefficient of resistivity) for copper=3.9 x 10^-3 ^oC^-1.
A.	125<sup>o</sup>C
B.	256<sup>o</sup>C
C.	1080<sup>o</sup>C
D.	273<sup>o</sup>C
Answer» C. 1080<sup>o</sup>C

Discussion

No Comment Found

Related MCQs

Identify the temperature at which the resistance of copper would be double of its resistance at <sup>o</sup>C. Given (temperature coefficient of resistivity) for copper=3.9 x 10<sup>-3</sup> <sup>o</sup>C<sup>-1</sup>.
Which of the following is not a valid reason for using alloys to make standard resistors?
A wire has a resistance of 5.5 at 19<sup>o</sup>C and 21.5 at 200<sup>o</sup>C. Find the temperature coefficient of resistivity( ) of the material.
The resistivity of X decreases with temperature and its coefficient of resistivity is negative. Identify X.
The resistivity of semiconductors and insulators decreases linearly with the increase of temperature.
Which among the following has weak temperature dependence values with resistivity?
Which of the following relation is significant for metals when the temperature increases?
What is the unit of the temperature coefficient of resistance ( )?
Identify the material which is suitable for making standard resistors.