what are ABCD curves in MCBs and how we observe that curves?

2 Answers  

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A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation.

0 Answers  

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What is the meaning of dedicated earthing?

0 Answers   Dabur,

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Why the tank of transformer is made rectangular not circular??

9 Answers  

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why do we prefer -48 volt instead of -24volt or -12 volt etc. ??

1 Answers  

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during positive and negative half cycle of ac supply what happenes in the load?

1 Answers   Siemens, Wipro,

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11 kv line me tino phase takra jaye to present time me approximately voltage aur current kya hoga...

2 Answers   Electrical, Electrical Tech, Videocon,

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Hi,My name is ranms i want to know the machine vibration related problems.post me if any body knows. 1) Possible causes of machine horizontal vibration high? 2) Possible causes of machine vertical vibration high? 3) Possible causes of machine axial vibration high?

1 Answers  

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When electric field is parallel to the plane of incidence, the electromagnetic wave is said to be a.Linearly polarized b.circularly polarized c. Elliptically polarized d. Hyperbolically polarized

1 Answers  

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Difference between ac parallel circuit and ac series circuit?

0 Answers  

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Brushless excitation of synchronous generators and motors

2 Answers   AMIE,

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What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

1 Answers  

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