railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines DC Motor DC Motor Torque

A DC series motor drawing an armature current of I_a is operating under saturated magnetic conditions. The torque developed in the motor is proportional to:

1

1 / I_a

2

1 / I_a²

3

I_a²

4

I_a

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