Calculate the reactive power consumed in the 50mH coil in the circuit where the voltage value of the given alternating voltage source is v=10 volts, the frequency is f=2.5khz and the inductance values are as follows V= /0 V 8:2.5 kHz LI L2 23 m 343 SOMH 20mH 43-40m4 ૮ ૦ ૮ H

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A: it is given that: L1=10 mHL2=20 mHL3=40 mH

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.