1. Which of the following is/are a reason for the drop in terminal voltage of a separately excited generator as load is increased? a) eddy currents b) FR losses of the windings c) hystereisis d) all of the above B 2. Eddy currents are kept to a minimum in the pole cores of a DC machine by using latninated pole. as opposed to a solid pole core. a) true b) false B3. A self-excited DC shunt generator must have a residual magnetic field to begin with in order for it to build up to its rated terminal voltage. a) true b) false
1. Which of the following is/are a reason for the drop in terminal voltage of a separately excited generator as load is increased? a) eddy currents b) FR losses of the windings c) hystereisis d) all of the above B 2. Eddy currents are kept to a minimum in the pole cores of a DC machine by using latninated pole. as opposed to a solid pole core. a) true b) false B3. A self-excited DC shunt generator must have a residual magnetic field to begin with in order for it to build up to its rated terminal voltage. a) true b) false
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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B 1. Which of the following is/are a reason for the drop in terminal voltage of a separately excited generator as load is increased?
a) eddy currents b) FR losses of the windings c) hystereisis d) all of the above
B 2. Eddy currents are kept to a minimum in the pole cores of a DC machine by using latninated pole. as opposed to a solid pole core.
a) true b) false
B3. A self-excited DC shunt generator must have a residual magnetic field to begin with in order for it to build up to its rated terminal voltage.
a) true b) false
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