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A 3 phase, 6 pole induction motor is rated at 400hz, 150v, 10h.p., 3% slip at rated power output. The windage and friction loss is 200w at rated speed. With the motor operating at rated voltage, frequency, slip, and power output, determine
(a) Rotor speed,
(b) Frequency of rotor current,
(c) Rotor copper losses,
(d) Power crossing the air gap,
(e) Output torque.
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Q. Determine the open-circuit output voltage v o of the system shown in Figure as a function of the input voltage v i .
why biasing of bjt transistor is essential?
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