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what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded
in science exhibition how lamp can blink when you clap near the lamp ? thank you
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
Whata are the types of Cables?
ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?
Why temperature rise is conducted in bus bars and isolators?
How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?
What are the different types of transformers?
What is the maximum and minimum rating of UPS?
armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?
Earth bits close or open. Which is correct
Alternator rotor earth fault relay circuit
state working of halogen lamp?
If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?
