Answer / rameez rehman

It is difficult to transform direct current from one voltage
to another; hence, initially DC had to be transmitted at the
low voltage at which it was generated and used. This fact
limited its applicability: if transmission of large amounts
of electricity or transmission over long distances was
required, the cost of the conductor (copper wire) was
prohibitive. Alternating current may be generated at a low
voltage, boosted to a higher voltage by a transformer,
transmitted and converted back to a lower voltage before use.

Answer / pooja

vry much losses accour due to transsmission of dc.

hi i m an EC engg i had cleared written test for PE for BEL plz help be for interview provide me full information about intrvw as much as u can.. thankx..

14 Answers   BEL, NTPC, ZTE,

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What is a varactor diode?

0 Answers  

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0 Answers   Wipro,

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What do you mean by Frequency re-use?

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2 Answers  

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in long range commn AM is very appropriate.why?

3 Answers   Cisco,

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Compare and Contrast- Diffusion and Drift Mechanisms

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why dont call datareader is backward

0 Answers  

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• The silicon of a new device has memory leak. When all "0" are written into RAM, it reads back all "0" whithout any problem. When all "1" are written, only 80% of memory cells are read back correctly. What can be possibly the problem with the RAM?

0 Answers  

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