1. If the potentiometer in the below figure is adjusted from a setting near the bottom (low resistance from wiper to ground) to a setting near the top (higher resistance from wiper to ground), the average current through will (a) increase (b) decrease (c) not change 2. If the diode in the below figure opens, the voltage across will (a) increase (b) decrease (c) not change

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter59: Motor Startup And Troubleshooting Basics
Section: Chapter Questions
Problem 12SQ: How is a solid-state diode tested? Explain.
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1. If the potentiometer in the below figure is adjusted from a setting near the bottom (low resistance
from wiper to ground) to a setting near the top (higher resistance from wiper to ground), the average
current through will (a) increase (b) decrease (c) not change
2. If the diode in the below figure opens, the voltage across will (a) increase (b) decrease (c) not change
Answer
1.
RI
100 1
2.
R1
10 kN
3.
4.
V,
120 V
R2
500 0
Transcribed Image Text:1. If the potentiometer in the below figure is adjusted from a setting near the bottom (low resistance from wiper to ground) to a setting near the top (higher resistance from wiper to ground), the average current through will (a) increase (b) decrease (c) not change 2. If the diode in the below figure opens, the voltage across will (a) increase (b) decrease (c) not change Answer 1. RI 100 1 2. R1 10 kN 3. 4. V, 120 V R2 500 0
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