why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 Answers  

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why we do occ & scc test in transformer ?how we can do it ?

2 Answers  

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The armature of shunt dc motor has 0.8ohm resistance and motor is to run on 120V circuit.If motor is suddenly thrown on circuit while armature at standstill then current drawn by motor will be??Also back emf in normal running is 110V

2 Answers  

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Why increase in current leads to increase in conductor temperature?

0 Answers  

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Is there any problem if i connect APFC panel in generator circuit

2 Answers  

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what is the d/f b/w iverter & converter.

5 Answers   Indeco,

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I need bhel previous year quetion papers for electrical engineering department.I searched but i could not find out

0 Answers  

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Q: How to calculate Transformer losses , tell us by Formula.

0 Answers  

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the 230 value of voltage which is use in our home . is that value is rms, aerage or peack value of voltage?

5 Answers   L&T,

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which calss ct's,pt', use protection,meatering and others

1 Answers  

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RESISTONS R1 AND R2 in parallel = Total R.? 1-R=R1+R2 2-R=1/R1 + 1/R2 3-1/R + R1+R2 R=R1R2/R1+R2 select one

2 Answers   BSNL, PGVCL Paschim Gujarat Vij Company Limited, TCS, Wartsila,

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can we use generator(a.c) as a motor.if so how if not why.

2 Answers  

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