A 0.0159-henry inductance coil and a 4-ohm resistor are connected in series across 240-V 60-Hz mains. Determine (a) reactance; (b) impedance; (c) current. A 5.99 Q, 7.2 Q2, 33.33 A B. 5.99 Q, 7.292, 60 A C. 5.99 , 4 , 33.33 A D. 5.99 02, 5.99 9, 60 A

A 0.0159-henry inductance coil and a 4-ohm resistor are connected in series across 240-V 60-Hz mains. Determine (a) reactance; (b) impedance; (c) current. A 5.99 Q, 7.2 Q2, 33.33 A B. 5.99 Q, 7.292, 60 A C. 5.99 , 4 , 33.33 A D. 5.99 02, 5.99 9, 60 A

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.7P: Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor,...

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Concept explainers

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.

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Number 39

A 0.0159-henry inductance coil and a 4-ohm resistor are connected in series
across 240-V 60-Hz mains. Determine (a) reactance; (b) impedance; (c) current.
A. 5.99 90, 7.2 Q, 33.33 A
B. 5.99 Q, 7.2 Q2, 60 A
C. 5.99 Q, 4 Q2, 33.33 A
5.99 Q, 5.99 Q, 60 A
D.

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