heat can flow from a body at low temperature to a body at higher temperature only when ........ is supplied from an external source A). Voltage B). Current C). work D). Mass

7 Answers   BMRCL,

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what will happen to give a dc supply in ac motor?

2 Answers   ABC, Indian Navy,

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if dc is better then ac...then why we are perfering ac over dc?eg:at home?

2 Answers  

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if i get a drop in my 1st year and the i clear my 2nd year and 3rd year all clear and i dont have any back logs so can i be able to sit in campus selection??

0 Answers  

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HOW many type of Circut Breaker in the world used in 400 kv substation?

14 Answers   Power Grid,

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how we can save the power ? suppose the electricity board gives 11 kw , but the machine require only 8 kw means how we can save the exese energy

2 Answers  

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what is the use of Reactive power in power system?

3 Answers  

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what happan when ac power transmitted in unity power factor

12 Answers   JE, Maihar Cement,

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How one can check the charger of the mobile phone or any other charger .......... that is it working ? if , working is it delivering the required supply which is needed by the battery to charge properly ?

4 Answers  

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what is function of reactor coil in Power factor correction panel

1 Answers  

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The exciting current of a transformer is non sinusoidal. why?

2 Answers  

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l&t switch FN 63 handle position can we change

0 Answers   OPTCL,

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