Q. Speed control of an ac motor can be achieved by varying the input frequency.

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Q. Which finger denotes the direction of current in Fleming’s left hand rule?

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Q. Which type of motor is not an encoder motor?

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Q. Who invented Induction motor?

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Q. Which finger denotes the direction of magnetic field in Fleming’s left hand rule?

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Q. Which is an example of motor driver?

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Q. Which is an example of single H-bridge type motor driver?

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Q. AC motors do not have brushes.

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Q. How many windings does a 2 phase bipolar stepper motor have?

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Q. Which finger denotes the direction of force in fleming’s left hand rule?

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Q. Which type of device is a stepper motor?

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Q. The speed of the rotation of the stepper motor depends on ________

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Q. Stepper motors are extremely reliable.

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Q. Length of rotation is directly related to ____

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Q. Which among the following is not the type of a stepper motor?

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Q. A stepper motor is a bad choice whenever control movement is required.

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Q. A soft iron multi-toothed rotor and wound stator is present in ___

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Q. Which type of stepper motors have low cost and low-resolution motor?

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Q. Which among the following is a property of hybrid stepper motor?

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Q. Which of the following is not the main selection criterion of a stepper motor?

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