What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?

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how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me

0 Answers   ME,

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In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?

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What happen in ups if phase reverse?

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Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

0 Answers   HAL,

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why grid frequency varry time to time?

2 Answers  

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how to connect from a line-to-line connection to a line-to- neutral connection?

6 Answers  

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Hi,Any one has idea regarding the KPTCL Recuirtments for AE'e & JE's for the year of 2009-10???Kindly help in regards..

6 Answers  

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diff.between servo motor and ac motor

0 Answers   Power Grid,

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What are the protections required in the main lt panel which is connected to the transformer.

1 Answers   Ispat,

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Define gain margin?

0 Answers  

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if voltage is not builed up in small generator what will be the reason?

7 Answers   century,

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