what is the difference between VARIAC,AUTO TRANSFORMER,DIMMERSTAT.

10 Answers  

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What is the role of feedback in a closed loop control system?

0 Answers   GE,

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in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients

0 Answers   Siemens,

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A resistance of 50 kΩ has a conductance of:(a) 20S(b) 0.02S(c) 0.02 mS(d) 20 kS

1 Answers  

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How do you classify the different types of torques?

2 Answers  

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what is meant by ceiling voltage, ceiling current?? pl reply asap

4 Answers  

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what could be the reason of a burnt current transformer in an electrical panel

1 Answers   ERWAT,

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AVR is used for the Voltage regulation of the Generator using the feedback signal by exciting the field winding of the generator.But how the field winding will be excited & using what?

2 Answers   Alstom,

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Differnce between earthing and nuetral

3 Answers   S Tech, wbsedcl,

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10. THE MOST COMMON TYPE OF THREE PHASE IN UNSYMMETRICAL FAULTS IS ........

6 Answers   SSC,

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How can we get electric power from lighting ?

3 Answers   TATA,

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is there any lightning by passer is arranged in ship like buildings?

0 Answers  

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