Match the two lists and choose the correct answer from the code given below:

List I

List II

(a) Current gain in common base

(i) 1 (ONE)

(b) Input impedance in common base

(ii) Less than unity

(c) Voltage gain in common collector

(iii) Very high ( 2 MΩ )

(d) Output impedance in common base

(iv) Lowest

Question

Question

This question was previously asked in

UGC NET Paper 2: Electronic Science Dec 2018 Official Paper

Answer 1

(a) Current gain in common base - Less than unity

(b) Input impedance in common base - Lowest

(c) Voltage gain in common collector - 1 (ONE)

(d) Output impedance in common base - Very high ( 2 MΩ )

Common base configuration:

SSC JE EE basic electronics 2 D9

Input Terminal Emitter – Base (EB)

Output Terminal Collector – Base (CB)

Since for Amplification Application in BJT

EB Junction → Forward Biased (Low Impedance)

CB Junction → Reversed Biased (High Impedance)

Various transistor configurations and their characteristics are shown in the table

Hence, Option 4 is correct.

List I	List II
(a) Current gain in common base	(i) 1 (ONE)
(b) Input impedance in common base	(ii) Less than unity
(c) Voltage gain in common collector	(iii) Very high ( 2 MΩ )
(d) Output impedance in common base	(iv) Lowest