If the terminal voltage of the motor is reduced by 10%, what is the motor speed? Assume that the field voltage is also reduced by the same ratio.
A dc shunt motor is driving a constant-torque load at the rated speed and rated
terminal voltage. The motor has the following rated data:
Terminal voltage = 115 V
Speed = 312 rpm
Field constant (K?) = 3 Vs
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The relationship for the current ration (Isec/Ipri) in a transformer is:
A) less than the turns ratio (Nsec/Npri). B) the inverse of the turns ratio (Nsec/Npri). C) more than the turns ratio (Nsec/Npri). D) the same as the turns ratio (Nsec/Npri).
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