Answer / glenn saldanha savio

SINCE BOTH FIELD AND ARMATURE ARE CONNECTED IN SERIES THE
TORQUE EQUATION IS T=KI2. (TORQUE PROPORTIONAL TO SQUARE OF
CURRENT).
ALSO NOTE THAT FROM THE CHARACTERISTIC IT IS THAT AS SPEED
INCREASES THE TORQUE DECREASES AND VICE VERSA.
THEREFORE THE TORQUE IS HIGH ONLY AT LOW SPEED.

Answer / ajay k mathew

in a series motor same high current flows through the field winding and armature,therefore high starting torque

Answer / utkal mishra

we know in series motor t=flux*armature current
as flux directly propertional 2 armaturecurrent

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