# Simplified Calculations for the CC Configuration MCQ’s

This set of Electronic Devices & Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Simplified Calculations for the CC Configuration”.

1. How do we compute the input resistance of a simplified CC amplifier model using hybrid parameters?
a) hie – (1 + hfe) × RL
b) hie + (1 + hfe) × RL
c) hie – (1 + hfe) / RL
d) hie + (1 + hfe) / RL

2. How do we compute the voltage gain of a simplified CC amplifier model using hybrid parameters?
a) 1 + hie × Ri
b) 1 – hie × Ri
c) 1 + hie / Ri
d) 1 – hie / Ri

3. How do we computethe current gain of a simplified CC amplifier model using hybrid parameters?
a) 1 + hoe
b) 1 – hoe
c) 1 + hfe
d) 1 – hfe

4. What is the value of voltage VB of a CC amplifier configuration if VCC = 12V, R1 = 5kΩ and R2 = 8kΩ?
a) 6.54V
b) 0.7V
c) 4.6V
d) 7.38V

5. How do we compute the input impedance of a simplified CC amplifier?
a) β × (Re – re‘)
b) β × (Re + re‘)
c) RB || β × (Re – re‘)
d) RB || β × (Re + re‘)

6. What is the voltage gain of a simplified CC configuration amplifier if RE = 25kΩ and re‘ = 12kΩ?
a) 0.68
b) 0.59
c) 0.48
d) 0.086

7. How do we compute the base impedance of a simplified CC amplifier?
a) β × (Re – re‘)
b) β × (Re + re‘)
c) RB || β × (Re – re‘)
d) RB || β × (Re + re‘)

8. How do we compute the output impedance of a simplified CC amplifier?
a) RE || (re‘ – (R1 || R2) / (β + 1))
b) RE || (re‘ – (R1 || R2) / (β – 1))
c) RE || (re‘ + (R1 || R2) / (β + 1))
d) RE || (re‘ + (R1 || R2) / (β – 1))

9. What is the approximate value of the voltage gain of a simplified CC amplifier configuration?
a) 1
b) β
c) ∞
d) 0

10. There is no collector resistance in a simplified CC amplifier configuration.
a) True
b) False