Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

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What is a differential amplifier?

0 Answers  

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how to find number of run for transformer & alternator secondary side? give the example.

2 Answers   Powergear, Regen Powertech,

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what is difference between induction motor&servo motor.what r types of servo motor?how it works?

1 Answers  

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how ceiling fan worked?

0 Answers  

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which is best ac or dc

3 Answers  

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What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

0 Answers   AFG, Afghan Telecom, GE, IBM, SECL, Sun Pharma, TNPL,

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What are the advantages of autotransformer?

0 Answers  

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from which formula we select a capacitor rating?

4 Answers   Suzlon,

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if 2500 KVA TRANSFORMER CAPACITY.33KV INCOMING HOW ARE AMPEAR PRIMERY SAID

3 Answers   Cipla,

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what is diff between Fourier series and Fourier transform?

2 Answers  

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HOW DEFINE THE IP FOR ELECTRICAL EQUIPMENT AND WHAT IS THE IP OF PANELS USING IN HAZARDOUS AREA ?

2 Answers  

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