instruction:
This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.
question:
Passage: For air dielectric capacitors the breakdown field strength is of the order 2 to 5 MV/m; for mica the breakdown is 100 to 300 MV/m; for oil, 15 to 25 MV/m; it can be much less when other materials are used for the dielectric. The dielectric is used in very thin layers and so absolute breakdown voltage of capacitors is limited. Typical ratings for capacitors used for general electronics applications range from a few volts to 1 kV. As the voltage increases, the dielectric must be thicker, making high-voltage capacitors larger per capacitance than those rated for lower voltages. The breakdown voltage is critically affected by factors such as the geometry of the capacitor conductive parts; sharp edges or points increase the electric field strength at that point and can lead to a local breakdown. Once this starts to happen, the breakdown quickly tracks through the dielectric until it reaches the opposite plate, leaving carbon behind and causing a short (or relatively low resistance) circuit. The results can be explosive as the short in the capacitor draws current from the surrounding circuitry and dissipates the energy.
answer:
What order is the breakdown field weakness for air dielectric capacitors of?


question:
Passage: The City of Charleston Fire Department consists over 300 full-time firefighters. These firefighters operate out of 19 companies located throughout the city: 16 engine companies, two tower companies, and one ladder company. Training, Fire Marshall, Operations, and Administration are the divisions of the department. The department operates on a 24/48 schedule and had a Class 1 ISO rating until late 2008, when ISO officially lowered it to Class 3. Russell (Rusty) Thomas served as Fire Chief until June 2008, and was succeeded by Chief Thomas Carr in November 2008.
answer:
How many companies aren't there in the City of Charleston Fire Department?


question:
Passage: A pair of overlapping political perspectives arising toward the end of the 20th century are republicanism (or neo- or civic-republicanism) and the capability approach. The resurgent republican movement aims to provide an alternate definition of liberty from Isaiah Berlin's positive and negative forms of liberty, namely "liberty as non-domination." Unlike liberals who understand liberty as "non-interference," "non-domination" entails individuals not being subject to the arbitrary will of anyother person. To a liberal, a slave who is not interfered with may be free, yet to a republican the mere status as a slave, regardless of how that slave is treated, is objectionable. Prominent republicans include historian Quentin Skinner, jurist Cass Sunstein, and political philosopher Philip Pettit. The capability approach, pioneered by economists Mahbub ul Haq and Amartya Sen and further developed by legal scholar Martha Nussbaum, understands freedom under allied lines: the real-world ability to act. Both the capability approach and republicanism treat choice as something which must be resourced. In other words, it is not enough to be legally able to do something, but to have the real option of doing it.
answer:

When did the perspectives jurist and non-interference appear?