wall socket source is modeled as an ideal 120 V rms voltage source in series with a 2-ohm output resistance. Assume the source frequency is w = 377 rad/s. Given: R=11.1 ohm 11+ 202 ww 120 V Wall socket Problem 07.021.d ww R 20 ml Blender motor What value of capacitor when placed in parallel with the motor will change the power factor seen by the voltage source to 0.9 lagging? (Round the final answer to two decimal places)

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Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.