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1

AIPMT 2000

MCQ (Single Correct Answer)
From the following diode circuit, which diode is in forward biased condition
A
B
C
D

Explanation

A diode is said to be forward biased if p-type semiconductor of p-n junction is at positive potential with respect to n-type semiconductor of p-n junction. It is so for circuit (a).
2

AIPMT 2000

MCQ (Single Correct Answer)
The cations and anions are arranged in alternate form in
A
metallic crystal
B
ionic crystal
C
covalent crystal
D
semi-conductor crystal.

Explanation

In an Ionic crystal, the cations and anions are arranged in alternate form.

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