why fan consume constant power even when we increase or decrease its circuit resistance through speed regulator???

2 Answers  

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what is the constructional difference in generator if we want to genearate 6.6kv instead of 440v?

1 Answers   Anglo Eastern,

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give me the details of anti pumping relay

2 Answers  

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what is the method to calculate the voltage drop for number of meters Example 250volts I/p at one end if the cable length is 50 meters what could be the drop?, after 100 meters how much? needs formulae.

1 Answers  

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what is skin effect? why is it absentin dc system

22 Answers  

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What are differences between Voltage, EMF & Potential difference ?

0 Answers  

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Why Neutral Earthing pits and body earthing is interconnected

3 Answers   Taj Group,

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Why does the phase voltage of two healthy phases become equal to the line voltage in case of an ungrounded neutral 3 phase star connected sytem when a single line to ground fault occurs ?

2 Answers  

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Why does inductor is connected to dc supply? or what is the role of an inductor when connected to DC source?

3 Answers   TCS, TRR,

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What is meant by stator? What is meant by rotor?

0 Answers  

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What are all the points to be checked for a newly re-winded motor before installation

1 Answers   Cisco,

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why we use star and delta connection?why we donot give the supply directly?

12 Answers   Hitech, Siemens, Tata Steel Limited,

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