Condensed Matter Physics-Hall Effect and Thermoelectric Power (CSIR Physical Sciences): Questions 1 - 1 of 1

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Question number: 1

» Condensed Matter Physics » Hall Effect and Thermoelectric Power

Appeared in Year: 2012

MCQ▾

Question

A magnetic field sensor based on the Hall effect is to be fabricated by implanting As into a Si film of thickness 1μm . The specifications require a magnetic field sensitivity of 500mVTesla at an excitation current of 1mA . The implantation dose is to be adjusted such that the average carrier density, after activation, is – (December)

Choices

Choice (4) Response
a.

4.1×1020m3

b.

1.25×1022m3

c.

1.25×1026m3

d.

4.1×1021m3

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