why we have and use 3 phase not 2 or 4 or other in power system?

0 Answers  

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What is meant by positive and negative feedback?

0 Answers  

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Why -48V dc power supply using in telecom field?

7 Answers   APC, Cisco,

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which is better ac or dc?

2 Answers  

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The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.

0 Answers   BARC,

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errection check list for transformer maintenance

0 Answers   RRB,

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Define conversion efficiency of a power amplifier.

0 Answers  

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a simple c++ program to calculate simple interst with its data members as private

0 Answers   L&T,

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What is the need of motor starter?

6 Answers  

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What is the function of capacitor in electrical circuits?

0 Answers  

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what is advantage in open delta connection?

20 Answers  

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how much current capacity 250 amp. mccb please tell me about whats are the reasons to trip 2 or 3 times in a night. and what are the steps to short out this problem

1 Answers   Havells,

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