GATE PH 2022 Paper 1 — page 10

Questions 28–30 of 65. Imported answers require review unless explicitly marked reviewed.

For a bipolar junction transistor, which of the following statements are true?

Your answerSelect all correct options. You can choose more than one.

Doping concentration of emitter region is more than that in collector and base region

Only electrons participate in current conduction

The current gain

depends on temperature

Collector current is less than the emitter current

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Potassium metal has electron concentration of

and the corresponding density of states at Fermi level is

. If the Pauli paramagnetic susceptibility of Potassium is

in standard scientific form, then the value of

(an integer) is ________ (Magnetic moment of electron is

; permeability of free space is

)

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A power supply has internal resistance

and open load voltage

. When a load resistance

is connected to the power supply, a voltage drop of

is measured across the load. The value of

is ________ (Round off to the nearest integer)

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2022 · Paper 1