A slice of intrinsic silicon bar is 3 mm long and has a rectangular cross-section 50 µm x 10 µm. At 300 K, determine the electric field intensity in the bar and the voltage across the bar when a steady current of 2 µA is measured. Take the value of resistivity p = 2.30 × 105 Ncm at room temperature (300 K).

A slice of intrinsic silicon bar is 3 mm long and has a rectangular cross-section 50 µm x 10 µm. At 300 K, determine the electric field intensity in the bar and the voltage across the bar when a steady current of 2 µA is measured. Take the value of resistivity p = 2.30 × 105 Ncm at room temperature (300 K).

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

A slice of intrinsic silicon bar is 3 mm long and has a rectangular cross-section 50 µm x 10 um.
At 300 K, determine the electric field intensity in the bar and the voltage across the bar
when a steady current of 2 µA is measured. Take the value of resistivity p = 2.30 x
105 Nem at room temperature (300 K).

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