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Q4 The zener diode shown in Fig. 1 has VZ = 18 V. The voltage across the load stays at 18 V as long as IZ is maintained between 200 mA and 2 A. Find the value of series resistance R so that E0 remains 18 V while input voltage Ei is free to vary between 22 V to 28V. (5 marks) R ww Eg 22 V to 28 V * Vz = 18V R, = 18 2 Fig 1

Q4 The zener diode shown in Fig. 1 has VZ = 18 V. The voltage across the load stays at 18 V as long as IZ is maintained between 200 mA and 2 A. Find the value of series resistance R so that E0 remains 18 V while input voltage Ei is free to vary between 22 V to 28V. (5 marks) R ww Eg 22 V to 28 V * Vz = 18V R, = 18 2 Fig 1

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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Q4 The zener diode shown in Fig. 1 has VZ = 18 V. The voltage across the load stays at 18 V as long as IZ is maintained between 200 mA and 2 A. Find the value of series resistance R so that E0 remains 18 V while input voltage Ei is free to vary between 22 V to 28V. (5 marks) R 22 V to 28 V *Vz = 18V En R= 182 Fig 1 ww
Transcribed Image Text:Q4 The zener diode shown in Fig. 1 has VZ = 18 V. The voltage across the load stays at 18 V as long as IZ is maintained between 200 mA and 2 A. Find the value of series resistance R so that E0 remains 18 V while input voltage Ei is free to vary between 22 V to 28V. (5 marks) R 22 V to 28 V *Vz = 18V En R= 182 Fig 1 ww
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