Electronics MCQs

Electronics ? Semiconductors Questions with solutions MCQs

1. Match List-I (Materials) with List-II (Type): i. Copper ii. Silicon iii. Silicon+P iv. Silicon+Al. Types: 1. Conductor 2. P-type 3. N-type 4. Intrinsic. Choose correct.

A

(i)-1, (ii)-4, (iii)-3, (iv)-2

B

(i)-2, (ii)-3, (iii)-1, (iv)-4

C

(i)-3, (ii)-2, (iii)-1, (iv)-4

D

(i)-4, (ii)-1, (iii)-2, (iv)-3

Electronics ? Semiconductors J.E Civil (SD) 2025
Correct Answer : A
Explanation :

Copper = conductor; Silicon = intrinsic; P-doping = N-type; Al-doping = P-type.

Correct Answered :

Wrong Answered :

2. Diffusion current in p-n junction greater than drift current if:

A

Forward biased

B

Reverse biased

C

Unbiased

D

None

Electronics ? Semiconductors J.E Civil (SD) 2025
Correct Answer : A
Explanation :

In forward bias, carrier diffusion dominates over drift current.

Correct Answered :

Wrong Answered :

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