For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

0 Answers  

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what is the difference in operation of 3 phase motor when am forward delta connection and reverse delta connection?

1 Answers   Birla,

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What is the purpose of lighting Transformer used in Industries for Lighting illumination? Its necessary or not?

2 Answers  

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what is the chemical reaction of solt and charcoal in earthing?

1 Answers   Shyam Group,

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how can i improve the power factor in domestic (230v)

0 Answers   Epcos,

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tell how current tranfomer works

2 Answers  

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n1 =1000 n2 =?;v1 =200:v2 =400

1 Answers   APGenco,

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When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

0 Answers  

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which Machine u will prefer to use at place where Flammable gases are coming out & why ??

6 Answers   NTPC,

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What is the meaning of In,Io & Ir in Circuit breaker? How to calculate?

1 Answers  

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What is technical difference between ELCB & ELMCB?

3 Answers  

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Air refrigeration cycle works on the

0 Answers   Caterpillar,

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