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T = Fr
Where:

 T 
 = Torque in Newton-meters

 F 
 = Force

 r 
 = Effective radius between the pivot point and
the conductor (m)
F = BIl
Where:
        B
 = Flux Density

       
 I
= Current
         l
= Length
T = BIlr
We simply combine the two formulae by substituting
“F ” in the first formula with the equation of force (BIl)
from the second formula.
60P
            T=
               2πn
Where:
      T
 = Torque in Newton-meters (Nm)

      P
 = Power output in Watts (W)

      n
 = Speed of rotation in revolutions per minute (rpm)
Motor


Generators

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8.2.2 Torque

  • 1.
  • 2. T = Fr Where: T = Torque in Newton-meters F = Force r = Effective radius between the pivot point and the conductor (m)
  • 3. F = BIl Where: B = Flux Density I = Current l = Length
  • 4. T = BIlr We simply combine the two formulae by substituting “F ” in the first formula with the equation of force (BIl) from the second formula.
  • 5.
  • 6.
  • 7. 60P T= 2πn Where: T = Torque in Newton-meters (Nm) P = Power output in Watts (W) n = Speed of rotation in revolutions per minute (rpm)