Introductory Courses

All about AC motors

All about AC motors

All about AC Motors Although a 3-phase induction motor is more efficient, some two-phase power motors are used. Also, the two-phase motor is used in many servo applications because transistor circuits can be used to control its speed and...

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Basics of electricity

Voltmeter: A voltmeter is an instrument used for measuring an electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital...

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