Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

Why material of brush is carbon in motors why not other
material.

Answer Posted / ahammed

In carbon brushes, since, its like a semicconducting
material, the resistance of which is depends on area of
contact. Its used to reduce sparking & to avoid short
circuit in armature segments.

Is This Answer Correct ?    8 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?

2085


what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?

2360


WHAT IS DEGREE OF COMPOUNDING IN D.C MACHINE MEANS? HOW TO READ THE OPERATING CHART FOR ANY ELECTRICAL MACHINES?

4881


How to decide cable tray size?

1152


WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI

2079


Explain and give me an example of a time when you had to explain some new procedures to your co-workers for quality service delivery, how did you go about it?

1988


standard earthing rating for power line..

2140


whatare the disadvantages occur,if the form factor of transmission will not be equal to 1.11

1874


what is package substation.how many types they have

2113


Determine a suitable number of slors and conductors per slot for the starter 1 winding of a 3 phase, 3300 V. SO Hz 300 rpm alternator. The diameter is 2.3 m

2844


What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

2351


Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain

1514


how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?

2214


What is the difference between relays and contactor construction wise?

2265


if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

1945