Condensed Matter Physics-Hall Effect and Thermoelectric Power (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1 - 2 of 2

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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 Equation . The specifications require a magnetic field sensitivity of Equation at an excitation current of Equation . The implantation dose is to be adjusted such that the average carrier density, after activation, is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Condensed Matter Physics » Hall Effect and Thermoelectric Power

Appeared in Year: 2016

MCQ▾

Question

A thin rectangular conducting plate of length Equation and width Equation is placed in the Equation plane in two different orientations, as shown in the figures below. In both cases a magnetic field Equation is applied in the Equation direction due to the applied voltage Equation .

A thin rectangular conducting plate (1)

A Thin Rectangular Conducting Plate (1)

In figure, a thin rectangular conducting plate is shown.

A thin rectangular conducting plate (2)

A Thin Rectangular Conducting Plate (2)

In figure a thin rectangular conducting plate is shown.

If the Hall voltage across the Equation direction in the two cases satisfy Equation , the ratio Equation must be: (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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