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39. Once triggering on, the SCR (with the cathode connected to common) will conduct for the remainder of a(n) a AC cycle I c. positive alternation DC cycle b. negative alternation d. 40. When testing an SCR with an ohmmeter by placing the negative lead on the cathode and the positive lead on the gate results in a low resistance reading, this would indicate that the SCR is a good c. inconclusive b. bad d. none of the above 41. For a triac to conduct for one complete cycle of a sine wave, a the gate must be pulsed once at 0 degrees b. the gate must be pulsed at 0 degrees and at 180 degrees c. the gate must be pulsed at 0 degrees and at 270 degrees none of the above d.

39. Once triggering on, the SCR (with the cathode connected to common) will conduct for the remainder of a(n) a AC cycle I c. positive alternation DC cycle b. negative alternation d. 40. When testing an SCR with an ohmmeter by placing the negative lead on the cathode and the positive lead on the gate results in a low resistance reading, this would indicate that the SCR is a good c. inconclusive b. bad d. none of the above 41. For a triac to conduct for one complete cycle of a sine wave, a the gate must be pulsed once at 0 degrees b. the gate must be pulsed at 0 degrees and at 180 degrees c. the gate must be pulsed at 0 degrees and at 270 degrees none of the above d.

Introductory Circuit Analysis (13th Edition)
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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39. Once triggering on, the SCR (with the cathode connected to common) will conduct for the remainder of a(n) a AC cycle I b. negative alternation c. positive alternation d. DC cycle 40. When testing an SCR with an ohmmeter by placing the negative lead on the cathode and the positive lead on the gate results in a low resistance reading, this would indicate that the SCR is a good c. inconclusive b. bad d. none of the above 41. For a triac to conduct for one complete cycle of a sine wave, a the gate must be pulsed once at 0 degrees b. the gate must be pulsed at 0 degrees and at 180 degrees c. the gate must be pulsed at 0 degrees and at 270 degrees none of the above d.
Transcribed Image Text:39. Once triggering on, the SCR (with the cathode connected to common) will conduct for the remainder of a(n) a AC cycle I b. negative alternation c. positive alternation d. DC cycle 40. When testing an SCR with an ohmmeter by placing the negative lead on the cathode and the positive lead on the gate results in a low resistance reading, this would indicate that the SCR is a good c. inconclusive b. bad d. none of the above 41. For a triac to conduct for one complete cycle of a sine wave, a the gate must be pulsed once at 0 degrees b. the gate must be pulsed at 0 degrees and at 180 degrees c. the gate must be pulsed at 0 degrees and at 270 degrees none of the above d.
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