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18 V R FIGURE 3 See Figure 3. What value must R be adjusted so for Iz to be 40 mA? Assume VZ = 12 V at 30 mA and ZZ = 30 Q. Answer is a number. Units are in ohms.

18 V R FIGURE 3 See Figure 3. What value must R be adjusted so for Iz to be 40 mA? Assume VZ = 12 V at 30 mA and ZZ = 30 Q. Answer is a number. Units are in ohms.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter16: Installation Of Heating, Cooling, And Refrigeration Systems
Section: Chapter Questions
Problem 19RQ
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18 V R FIGURE 3 See Figure 3. What value must R be adjusted so for Iz to be 40 mA? Assume VZ = 12 V at 30 mA and ZZ = 30 Q. Answer is a number. Units are in ohms.
Transcribed Image Text:18 V R FIGURE 3 See Figure 3. What value must R be adjusted so for Iz to be 40 mA? Assume VZ = 12 V at 30 mA and ZZ = 30 Q. Answer is a number. Units are in ohms.
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