The brush polarity in a separately excited generator cannot be changed by reversing the rotation of the armature or the direction of the field current.
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Q5: How can a field rheostat be used
Q6: The magnitude of the voltage depends on
Q7: Residual flux is caused by the residual
Q8: _ the resistance increases the output voltage.
Q9: How is magnetic saturation achieved in a
Q10: In a separately excited generator, an output
Q11: What causes residual flux?
Q12: How is the upper limit of the
Q13: If both the armature direction and the
Q14: Field control of the output voltage is
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