Question:
Arrange the following BJT circuits in decreasing order of input resistance:
A. Common base
B. Common emitter
C. Emitter follower
D. Emitter follower using Darlington pair
Arrange the following BJT circuits in decreasing order of input resistance:
A. Common base
B. Common emitter
C. Emitter follower
D. Emitter follower using Darlington pair
Show Hint
Darlington gives very high input impedance.
Updated On: May 20, 2026
- A, B, C, D
- A, B, D, C
- D, C, B, A
- D, C, A, B
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Concept:
Input resistance comparison:
• Darlington pair → highest input resistance
• Emitter follower → high input resistance
• Common emitter → moderate
• Common base → lowest
Step 1: Arrange decreasing order \[ D > C > B > A \] \[ \therefore \text{Correct answer is (C)} \]
• Darlington pair → highest input resistance
• Emitter follower → high input resistance
• Common emitter → moderate
• Common base → lowest
Step 1: Arrange decreasing order \[ D > C > B > A \] \[ \therefore \text{Correct answer is (C)} \]
Was this answer helpful?
0
0
Top CUET PG Electronics and Communication Engineering Questions
- What is the Thevenin equivalent voltage across a load in an open-circuited network?
- Which semiconductor device is primarily used as a voltage regulator?
- Calculate the Nyquist rate for a signal with a maximum frequency component of 5 kHz.
- How many flip-flops are required to build a MOD-16 counter?
- Which type of power amplifier has the highest theoretical efficiency?
View More Questions
Top CUET PG Transistors Questions
- Assertion (A): FET is a majority carrier device whereas BJT works based on movement of both majority and minority carriers. Reason (R): Thermal runaway occurs in FET circuits but does not occur in BJT circuits.
Consider the following fixed bias circuit configuration. Find $I_C$ ($\beta = 50$, $V_{BE} = 0.7V$).
Top CUET PG Questions
- Given below are two statements:
Statement I: For Plato the meaning of the word 'Justice' is basically a conception in the mind only.
Statement II: For Plato the meaning of the word 'Justice' is fixed, mind-independently
In the light of the above statements, choose the correct answer from the options given below: - What is the electron count of OS6CO182-?
- XeF4 hydrolysis gives A + B, HF, and Oxygen. Find A and B
- What is more basic in pyrol and pyridine?
- Hydrolysis of Al2C3, Be2?
View More Questions