power is the product of voltage and current.so we can measure the value of power just by using ammeter and voltmeter.......then why do we use a wattmeter?

5 Answers  

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What are the different protection systems used to protect the transformer internally and externally?

16 Answers  

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i want prepare power grid exam what are book we want refer for electrical ?

5 Answers  

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which type of ICs can be used in resonant power converter?

1 Answers  

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why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

0 Answers   Alstom,

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what is TRCC

2 Answers  

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dg started in plc mode and load taken later one battery terminal connection will be disconnected by loose connection what will happen for dg and shall we connect battery terminals while dg in load time?

0 Answers  

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wich timer i have prefred for pusher operation fwd & back?

2 Answers   AluChem,

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HOW TO CALCULATE THE VT SIZING?

0 Answers   L&T,

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What are stable systems?

0 Answers  

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Why don't we use ground free electricity to avoid electric shock.As birds are do not get shock.

3 Answers  

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Is it possible to make 0.75KW motor earthing from MCC panel by using the 1.5 SQMM, 4 core cable, means 3 core for 3 Phases & 1 core for Earth terminal?

4 Answers  

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