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A potentiometer has a total length of 10 cm and a resistance of 100 Q. (a) Calculate the supply voltage so that power dissipation = 1 W. (b) Draw the Thévenin equivalent circuit for 7 cm displacement. (c) The potentiometer is connected to a recorder with a resistance R,. Find R, such that the recorder voltage is 5% less than the open circuit voltage at 7 cm displacement.

A potentiometer has a total length of 10 cm and a resistance of 100 Q. (a) Calculate the supply voltage so that power dissipation = 1 W. (b) Draw the Thévenin equivalent circuit for 7 cm displacement. (c) The potentiometer is connected to a recorder with a resistance R,. Find R, such that the recorder voltage is 5% less than the open circuit voltage at 7 cm displacement.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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5.8 A potentiometer has a total length of 10 cm and a resistance of 100 2. (a) Calculate the supply voltage so that power dissipation = 1 W. (b) Draw the Thévenin equivalent circuit for 7 cm displacement. (c) The potentiometer is connected to a recorder with a resistance R,. Find R, such that the recorder voltage is 5% less than the open circuit voltage at 7 cm displacement.
Transcribed Image Text:5.8 A potentiometer has a total length of 10 cm and a resistance of 100 2. (a) Calculate the supply voltage so that power dissipation = 1 W. (b) Draw the Thévenin equivalent circuit for 7 cm displacement. (c) The potentiometer is connected to a recorder with a resistance R,. Find R, such that the recorder voltage is 5% less than the open circuit voltage at 7 cm displacement.
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