20.a. If the unloaded secondary voltage of a transformer is 210 V and the full-load secondary voltage is 200 V, the percent regulation is A. 95% B. 5% C. 90% D. 10% 20.b. Which current(s) is (are) applied to the control winding of a magnetic amplifier? A. D-c control current only B. D-c control and a-c signal currents C. Output current D. A-c signal current only
20.a. If the unloaded secondary voltage of a transformer is 210 V and the full-load secondary voltage is 200 V, the percent regulation is A. 95% B. 5% C. 90% D. 10% 20.b. Which current(s) is (are) applied to the control winding of a magnetic amplifier? A. D-c control current only B. D-c control and a-c signal currents C. Output current D. A-c signal current only
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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20.a. If the unloaded secondary voltage of a transformer is 210 V and the full-load secondary voltage is 200
V, the percent regulation is
A. 95%
B. 5%
C. 90%
D. 10%
20.b. Which current(s) is (are) applied to the control winding of a magnetic amplifier?
A. D-c control current only
B. D-c control and a-c signal currents
C. Output current
D. A-c signal current only
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