AIPMT 2005 | Semiconductor Electronics Question 92 | Physics

AIPMT 2005

MCQ (Single Correct Answer)

-1

Application of a forward bias to a p-n junction

widens the depletion zone

increases the potential difference across the depletion zone

increases the number of donors on the n side

decreases the electric field in the depletion zone.

AIPMT 2005

MCQ (Single Correct Answer)

-1

Choose the only false statement from the following.

In conductors the valence and conduction bands overlap.

Substances with energy gap of the order of 10 eV are insulators.

The resistivity of a semiconductor increases with increase in temperature.

The conductivity of a semiconductor increases with increase in temperature.

AIPMT 2004

MCQ (Single Correct Answer)

-1

The output of OR gate is 1

if both inputs are zero

if either or both inputs are 1

only if both inputs are 1

if either inputs is zero

AIPMT 2004

MCQ (Single Correct Answer)

-1

Of the diodes shown in the following diagrams, which one is reverse biased ?

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