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Superconductors use ____ to maintain working temperature near _____

Superconductors use ____ to maintain working temperature near _____ Correct Answer closed cooling system, 70K

Superconductor analog filters make use of closed cooling system, and thermo-electric coolers to maintain working temperature near 70K.

Related Questions

Consider the following statements: 1. Superconductors exhibit normal conductivity behaviour above a transition temperature Tc 2. Superconductors lose their superconducting nature in an external magnetic field, provided the external magnetic field is above a critical value. 3. High Tc, superconductors have T, values in the range 1 to 10 K. Which of the above statements are correct?
Consider the following statements: 1. Type-I superconductors undergo an abrupt transition to the normal state above a critical magnetic field. 2. Type-II superconductors are highly technologically useful superconductors because the incidence of a second critical field in them is useful in the preparation of high field electromagnets. Which of the above statements is/are correct?
A, B, C, D, K, L, M and O are researchers and are working in three different institutes, X, Y and Z. They are working in three different areas namely, solar energy, sustainable development, and rainwater harvesting for agricultural purpose. Not less than two or more than three researchers are working in the same area and not more than three of them are working the same institute. K is researching in the sustainable development in the institute Y with B who is doing research in rainwater harvesting. A and M are doing research in the same area but not in sustainable development and are not working in the institute Y. C is researching in solar energy in the institute Z, only with D who is working in sustainable development. L is researching in rainwater harvesting area and not working in the institute where A works. O is not doing research in the solar energy. Choose option for answering question, In which of the institute/institutes at least one researcher is working in the area of solar energy ?
What is the total number of employees in the company? Which of the following option is sufficient alone to find the answer? A) In the company, employees like either tea or coffee or cold drink. Out of the total employees, 25% like tea and 40% like coffee. Out of remaining employees, 20% like cold drink and remaining employees don’t like any of these drinks. B) Out of total employees 18% working in the marketing departments, 35% working in IT departments. From the remaining employees 25% working in HR departments and 45% working in content departments and remaining 141 are working in other departments. C) Employees working in the company is form state X, Y and Z. 20% of employees working in the company is from state X and from remaining 60% employees is from state Z and the remaining employees is from the state Y. D) 60% of the employees in the company are married and remaining employees are unmarried. The ratio of male and female unmarried employees is 4 : 5 and ratio of married male and female employees is 3 : 4.
Type-I superconductors are also called soft superconductors because
Match List-I with List-II and select the correct answer using the code given below the Lists: List I (Low-Latitude Climate) List I (Characteristic) A. Wet Equatorial 1. Uniform temperatures, mean near 27°C  B. Monsoon and trade wind coastal 2. Marked temperature cycle with very high temperature before the rainy season C. Wet-dry tropical  3. Temperatures show an annual cycle with a high temperature in the high-Sun season Strong temperature cycle. with intense temperature during the high-Sun season  D. Dry tropical 4. Strong temperature cycle, with intense temperature during the high-Sun season
In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. The modes of action are _____ in science and religion. Science relies on experiment, whereas religion is based on experience. Any religious _____ whether it is Christs or Ramakrishnas is personal and _____ . Science, on the other hand is marked by objectivity. Theory has to be corroborated by _____ proof providing material comforts. The frontiers of science do not end in knowledge but are _____ to the formation of appliances for actual use. The frontiers of science do not end in knowledge but are _____ to the formation of appliances for actual use.
Which of the following statements are true/false?
1. The employer needs to maintain a register of the employees working under him. This register needs to be preserved for a period of two years after the date of the last entry made therein.
2. In case of a person who is working in any railway factory or industrial or other establishment upon or in which more than one thousand persons are employed, the wages need to be paid by tenth of that month.
3. In case of a person who is working in any railway factory or industrial or other establishment upon or in which less than one thousand persons are employed, the wages need to be paid by third of that month.
4. In case, an employer terminates an employee, the wages earned by him must be paid before the expiry of the second working day from the day on which his employment is terminated.
In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided oni) bottom face near counterfortii) top face near counterfortiii) bottom face near centre of spaniv) top face near centre of span The correct answer is
In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on
i) bottom face near counterfort
ii) top face near counterfort
iii) bottom face near centre of span
iv) top face near centre of span
The correct answer is