Electronic Devices-Semiconductors (AIIMS Physics): Questions 1 - 2 of 2

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Question number: 1

» Electronic Devices » Semiconductors

Appeared in Year: 2003

MCQ▾

Question

To a germanium sample, traces of gallium are added as an impurity. The resultant sample could behave like –

Choices

Choice (4) Response

a.

an insulator

b.

a p-type semiconductor

c.

a n-type semiconductor

d.

a conductor

Question number: 2

» Electronic Devices » Semiconductors

Appeared in Year: 2005

MCQ▾

Question

In semiconducting material the mobility of electrons and holes are μe and μh respectively. Which of the following is true?

Choices

Choice (4) Response

a.

μe<μh

b.

μe=μh

c.

μe<0;μh>0

d.

μe>μh

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