A 250 v dc shunt motor has shunt field resistance of 250ohm and armature resistance of 0.25ohm for a given load torque and no additation resistance included in shunt field circuit the motors runs at 1500 rpm drawing an armature current of 20 A if a resistance of 250 ohm is inserted in series with the field the load torque remains the same assume the magnetzation to b linear
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"A" (and any subsequent words) was ignored because we limit queries to 32 words.
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