why do we generate sinusoidal ac?can we generate some other waveforms by alternators?

11 Answers   Siemens,

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what diff. between earth nd neutral?

3 Answers   NTPC,

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why in america the supply frequency is applied as 60 HZ. but in india we use 50 HZ.

1 Answers   Elcom International, HCL, NTPC, OMC,

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We know that primary transmission is done to reduce current so that i^2*r loss could be minimised but according to ohm's law v is directly proportional to i,which indirectly means higher potential difference means larger current?so how the current is minimised in high power transmission line??

2 Answers  

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What makes the difference between 50Hz supply and 60Hz supply which one is economical and how can you support your answer...........?

2 Answers   Fertichem, Kuwait Oil Company,

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2 electric bulbs of 100w,200V are put in series & the combination of each bulb is supplied to 100 V . the power consumption of each bulb will be????????

4 Answers  

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In a single phase converter, the no. of SCR conducting during overlap? a.1 b.2 c. 3 d. 4

3 Answers  

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sir what is the minimum IR value of 11 KV alternator?

4 Answers   Kirloskar,

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where we use stardelta starter and dol starter

4 Answers   HCL,

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if power factor comes in leading & showing -0.95. Is there any effect on electrical system? if yes, then please tell me what would be the effects. & how long we keep power factor in leading. Keeping power factor in leading shows more KW & less KVA is it correct or not.

2 Answers   Jakson,

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What is the ohms law?

20 Answers  

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What is a dominant pole?

0 Answers  

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