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The terminal voltage across a single phase of a stepper motor used as a generator is...

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Physics

The terminal voltage across a single phase of a stepper motorused as a generator is applied across a load resistor of 33 ohms.This terminal voltage has an amplitude of 18.7V and a frequency of242 Hz. From a previous measurement, we know that this steppermotor phase has an internal resistance of 11.2 ohms. What is thetime-averaged power delivered to the load? What is the electricalefficiency of this circuit? Write down an expression for theinstantaneous (i.e. as a function of time) current flowing throughthe load.

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4.3 Ratings (701 Votes)
Terminal Voltage 187 V x cos 2pi f t where f frequency of the AC supply This terminal voltage is driving current through total resistance 33112Ohms 442    See Answer
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