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Explain about the term extrinsic fiber optic sensors.
Extrinsic sensors:
Extrinsic fiber optic sensors utilize an optical fiber cable, usually a multimode one, to transmit modulated light by either a non-fiber optical sensor, or else an electronic sensor linked to an optical transmitter. A main benefit of extrinsic sensors is their capability to reach places that are otherwise inaccessible. An illustration is the measurement of temperature into aircraft jet engines via using a fiber to transmit radiation within a radiation pyrometer located outside the engine. These sensors can also be used in similar way to measure the internal temperature of electrical transformers; there the extreme electromagnetic fields present create other measurement techniques not possible.
Superconductivity The phenomena from which, at sufficiently low temperatures, a conductor can conduct charge along with zero resistance. The current theory for describing supe
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Q. Which of the following isn't true of Guglielmo Marconis experiments on wireless transmission Answer:- A) In 1901 he broadcasted a signal from Newfoundland to England
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AVERAGE ACCELERATION: The total change in velocity of a body separated by total time taken is known as average acceleration. It is denoted by a ? av or .
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