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Carbon l + T Hollow 2a 2b T↓ Figure P2.4 Carbon resistor of Problem 2.4. 2.4 A resistor of length l consists of a hollow cylinder of radius a surrounded by a layer of carbon that extends from r = a to r = b, as shown in Fig. P2.4. (a) Develop an expression for the resistance R. (b) Calculate R at 20 °C for a = 2 cm, b = 3 cm and l = 10 cm.

Carbon l + T Hollow 2a 2b T↓ Figure P2.4 Carbon resistor of Problem 2.4. 2.4 A resistor of length l consists of a hollow cylinder of radius a surrounded by a layer of carbon that extends from r = a to r = b, as shown in Fig. P2.4. (a) Develop an expression for the resistance R. (b) Calculate R at 20 °C for a = 2 cm, b = 3 cm and l = 10 cm.

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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Carbon l + T Hollow 2a 2b T↓ Figure P2.4 Carbon resistor of Problem 2.4.
Transcribed Image Text:Carbon l + T Hollow 2a 2b T↓ Figure P2.4 Carbon resistor of Problem 2.4.
2.4 A resistor of length l consists of a hollow cylinder of radius a surrounded by a layer of carbon that extends from r = a to r = b, as shown in Fig. P2.4. (a) Develop an expression for the resistance R. (b) Calculate R at 20 °C for a = 2 cm, b = 3 cm and l = 10 cm.
Transcribed Image Text:2.4 A resistor of length l consists of a hollow cylinder of radius a surrounded by a layer of carbon that extends from r = a to r = b, as shown in Fig. P2.4. (a) Develop an expression for the resistance R. (b) Calculate R at 20 °C for a = 2 cm, b = 3 cm and l = 10 cm.
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