Question

The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.

a.

768

b.

1127

c.

1359

d.

1480

Answer: (b).1127

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.

Q. Steels with high carbon equivalent have poor weldability, because in these steels during welding

Q. If the pH value of a solution of sodium chloride is 7; then what will be the pH value of the solution after its electrolysis ?

Q. Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.

Q. Salvage value is the most flexible criteria for analysing a financial investment. 'Salvaging' means

Q. Super conduction in metals is observed at a temperature of __________ °K.

Q. On-off control

Q. The tensile load-elongation curve of a metal does not describe

Q. Usual value of the resistance suitable for a wire resistance strain gauge is __________ ohms.

Q. Permanent set in a material is produced by subjecting it to

Q. The following is a typical anionic collector used in flotation.

Q. Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils ?

Q. The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.

Q. The process of removal of scale formed during hot rolling of steel is termed as

Q. A psychrometer does not measure the __________ temperature of moist air.

Q. An ideal material for making cooking vessels should have

Q. The units of the rate constant for a second order reaction are

Q. The most serious manufacturing defect from fracture toughness point of view is

Q. Leakage in a cooking gas cylinder is detected by

Q. Which of the following is the most wear resistant grade of carbide used for the cutting tools?

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!