Armature: rotating part of an electric generator or motor.
        
Any moving part in electrical equipment which closes a 
magnetic circuit or which has a voltage induced in it by 
magnetic field. the simplest example is the moving contact 
in an electromagnetic relay.

Armature reaction: the modification in the distribution of 
the flux in a m/c due to the armature ampere-turns.

Armature: rotating part of an electric generator or motor.
        
Any moving part in electrical equipment which closes a 
magnetic circuit or which has a voltage induced in it by 
magnetic field. the simplest example is the moving contact 
in an electromagnetic relay.

Armature reaction: the modification in the distribution of 
the flux in a m/c due to the armature ampere-turns.

Nanotechnology is a  part of science that deals with the 
particles of about few hundred nano meters.

  The diameter of world's smallest motor is 300 times 
smaller than the dia. of human hair and this type of motors 
are used for nano robots. r u believe it! but it's a fact & 
it's possible through nanotechnology.

   With the help of nanotechnology we can able to see an 
unbelievable world in  our future.

phase voltage is voltage between phase (R Y B) to Neutral.
& line voltage is Voltage between to phases like R & Y.
line voltage 415V.in star connection line voltage=phase 
voltage*1.732=415v.

it is grounded at regular intervels in order to assure the 
workman's safety..

in tanks due to rotational movements of fluids the charges 
gets accumulated on the surface of the tank.. it is 
grounded at regular intervels in order to assure the 
workman's safety..

THE purpose of neutral grounding resistor is to limit the 
fault current of the system since ground fault current 
takes earth as return path

to limit the fault current entering into earth for safety 
purposes..

in dry conditions  the resistance is 10,000ohms.. 
when the body is wet it is reduced to 1000 ohms...

Normally, the electrical motors are working based
on the faraday's law. [WHEN A CURRENT CARRYING CONDUCTOR
SHOULD CUT THE MAGANETIC FLUX MEANS A EMF WILL BE PRODUCED].

Stator Winding: Produce maganetic flux,
Rotor Winding: Is a current carrying conductor with shaft.

When a supply is passes through the rotor winding means,
it's cut the flux which is created by the stator winding.
At that time the EMF will produced,The shaft which is 
connected to the rotor should start run.

FOR D.C MOTORS:
    When a current carrying conductor is placed in a 
magnetic field, a force acts on it.

FOR A.C MOTORS:
    When a current is passed through stator winding, an 
alternating flux created on the stator winding which in 
turn cuts a rotor winding(wire wound motor)/short circuited 
copper bar(squirrel cage motor), then a current flows 
through it and as above one motors works.

Is it correct or not?

Sorry, i make a mistake. Question is
WHAT ARE THE COLOUR'S AND THEIR INDICATIONS IN SILICA GEL.