A source can be both primary and secondary depending on its context and how it is used. For example, a diary (primary source) can provide firsthand accounts of events, but if it is analyzed in a research paper to discuss historical perspectives, it serves as a secondary source. Thus, the classification changes based on the purpose of the examination and the perspective of the researcher.
secondary source
When the primary and secondary voltages are the same the transformer is being used for isolation. The secondary side will have galvanic isolation from the primary side. The purpose of the is to protect secondary load if a fault occurs on the primary side. The impedance of the transformer will limit the fault current on the secondary which should save equipment.
Secondary - derived from the primary Opinion - a conclusion held with confidence but without definitive proof A secondary opinion is an opinion from a secondary source after an opinion has already been given by the primary source. The secondary opinion may agree with or be in disagreeance with the primary opinion. For example, some people may visit their doctor and not be confident with his diagnosis of their symptoms, so they visit a second doctor, describing the same symptoms from the primary diagnosis, to get a secondary opinion.
Definitely, that photo was there! Someone who sketches or paints that same photo will in turn be creating a secondary source.
Are you talking about the tapestry itself as a textile, or are you talking about information portrayed on the tapestry?
there not
The birthday rule will decide who's plan is primary or secondary.
ATS's constantly monitor the primary and secondary sources of power. When the primary source of power goes out, and the secondary is available, the unit automatically switches to the secondary power source. Some ATS's switch back to primary using the same logic, and some have to be manually switched back to primary. There are 'smart' switches that wait until the primary power source is available for a certain length of time (i.e. 2 minutes) until switching back, to avoid connecting to an unstable or intermittent utility source.
people have different interpretations of primary sources
By definition of a historical primary source (by someone with direct knowledge from the time), a original political cartoon is a primary source. By definition of an English primary source (it is printed), it is a primary source. By definition of the final form of primary sources (see definition of primary source on www.answer.com), it is based on someone's interpretation of the time and is thus a secondary source.
there not
A secondary source is a document or commentary that quotes or references a primary source, without first-hand knowledge of the activity or event. A secondary source is a source other than the main source that is used to gather information. Just find another source where the same or additional information can be found.