EXAMIANS
It is advisable to start a DC series motor with some load to
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A motor armature conductor of length 0.5 m is exposed to a flux density of 4 Wb / m2. Calculate the force experienced by the conductor, when the armature current is 5 Amp?
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If the back emf in DC motor vanishes suddenly the motor will
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Which of the following is done in speed control of DC motor by field flux control?
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Maximum power will be developed when back emf is
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A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf?
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A bipolar dc machine with interpoles has a main-pole flux of ф per pole and an interpole flux of Фᵢ per pole. The yoke of the machine is devide into four quadrants by the main-pole axis and The commutation axis. The flux-distribution in the quadrants will be
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In a synchronous motor torque or load angle δ ------------- with increase in load
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Which of the following statements is/are correct statements?
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A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power?
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