Answer / pyobik

voltage which does not changes it magnitude and direction
w.r.t time is called DC voltage.

Answer / pavan

A DC voltage doesnot have any frequency .

Which motor runs on both ac and ac? a) dc series motor b) reluctance motor

2 Answers  

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If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation

4 Answers  

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what is the magnitude of earthing and neutral voltage

2 Answers  

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Difference between control junction box (cjb) and power junction box(pjb)?

0 Answers  

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A car's starter motor draws a current of 100 A at 12,0 V when starting the engine. The mechanical power required to turn the engine is 960 W. At what rate is energy from the battery converted to non-mechanical forms of energy?

0 Answers   Siemens,

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could i arrange a faulty and healthey battery bank togather in parallel , if your ans is not then why?

3 Answers  

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What is harmonics. How does it get generated and means to arrest harmonics

8 Answers   Airtel,

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Difference between RCCB, RCBO and ELMCB.

0 Answers   Megatron Solutions,

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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

0 Answers   VECL,

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method to check earthing

5 Answers   ECC,

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diff between grounding & earthing

8 Answers   BARC, Mobiserv, NTPC, Tata Steel Limited,

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what is the working principle of ceiling fan and table fan?

10 Answers   ABC, Tata Steel Limited,

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