DC motors are considered most suitable for the applications in
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Which dc motor will have highest percentage increase in input current for a given percentage increase in torque?
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If the load current and flux of dc motor are kept construe while the voltage applied across the armature is increased by 4 percent, the aped of the motor will
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A dc series motor is running at rated speed. If a resistance is placed in series, the speed of the motor
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A dc series motor is running with a diverter connected across its field winding. If the diverter resistance is increased, then the speed of the motor
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Left hand rule is applicable to
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Which of the following motors has high starting torque?
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If field of d.c. shunt motor is opened, then
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Voltage applied across the shunt motor has to
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Maximum number of brushes which can be used in a machine is
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All machines have the structure such that
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All rotating machines are basically
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