#### Torque or moment or moment of force is the tendency of a force to rotate or move an object about an axis. A force is a push or pull, likewise torque is a twist to an object. Mathematically, Torque, T = F × r.

####
####
Let

####
T_{g} = armature or gross torque ( N-m )

####
= ( Force × radius )

r = radius of the armature in m

N = speed of the armature in r.p.m. = N / 60 r.p.s

Work done / revolution = force × distance moved per revolution

#### Let

####
T_{g} = armature or gross torque ( N-m )

#### = ( Force × radius )

r = radius of the armature in m

N = speed of the armature in r.p.m. = N / 60 r.p.s

Work done / revolution = force × distance moved per revolution

#### The expression for voltage in d.c. motor is given by

####
**V = E**_{a}
+ I_{a
}R_{a }( multiply throughout by I_{a })

_{a}+ I

_{a }R

## 0 Comments

Do not enter any spam links and messages