Answer / k.prakashchandra

They can made to rotate in anti clock direction if the wings
are reshaped to blow the air. Originally the ceiling fans
were made to rotate in Ac direction only to suck the hot air
from fire place,when they were introduced in India by
Britishers.The direction was changed for cooling purpose
instead of circulating hot air.

why one side of tubelight glows after switch off ?

1 Answers  

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I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

0 Answers  

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In diesel generator how AVR get voltage to excitation. And basic diagram DG EXCITATION CIRCUIT.

0 Answers   Hyatt,

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does buccholz in a transformer use batteries

2 Answers  

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howmuch current can carry the 2.5Sqmm copper cable?

42 Answers  

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Reversal of corrent feature in MCCB- What is reversalof current -explain broadly.

1 Answers  

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what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor

0 Answers  

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for what purpose the star point is done in ct

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Even when a particular generator in a generating station is under maintenance we are still able to maintain the same power output. How is this possible? Does the tie line between 2 generating stations have a role to play in it?

1 Answers   NTPC,

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What is the full form of PSD & CSD ?

6 Answers   NIFT, PNG Power, PSD,

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How many types of earths are there?What is the maximum ohms of earthfit?

3 Answers  

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1 Ton is equal to how many watts?

0 Answers  

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