Two-Port Network Parameters - Electronic Engineering (MCQ) questions & answers

1)   An open circuit reverse voltage gain in h-parameters is a unitless quantity and generally equivalent to  ________

a. V1 / I1 (keeping V2 = 0)
b. I2 / I1 (keeping V2 = 0)
c. V1 / V2 (keeping I1 = 0)
d. I2 / V2 (keeping I1 = 0)
Answer  Explanation 

ANSWER: V1 / V2 (keeping I1 = 0)

Explanation:
No explanation is available for this question!
2)   Which among the following represents the precise condition of reciprocity for transmission parameters?

a. AB - CD = 1
b. AD – BC = 1
c. AC – BD = 1
d. None of the above
Answer  Explanation 

ANSWER: AD – BC = 1

Explanation:
No explanation is available for this question!
3)   If z-parameters are z11 = 40, z22 = 50 and z12 = z21 = 20, what would be the value of y22 in the matrix form of y-parameters given below?

a. 4 / 160
b. 5 / 160
c. 10 / 160
d. 15 / 150
Answer  Explanation 

ANSWER: 4 / 160

Explanation:
No explanation is available for this question!
4)   If the two ports are connected in cascade configuration, then which arithmetic operation should be performed between the individual transmission parameters in order to determine overall transmission parameters?

a. Addition
b. Subtraction
c. Multiplication
d. Division
Answer  Explanation 

ANSWER: Multiplication

Explanation:
No explanation is available for this question!
5)   Which is the correct condition of symmetry observed in z-parameters?

a. z11 = z22
b. z11 = z12
c. z12 = z22
d. z12 = z21
Answer  Explanation 

ANSWER: z11 = z22

Explanation:
No explanation is available for this question!
6)   How is the short circuit reverse transfer admittance (y12) calculated in terms of current and voltage ratio?

a. V2/ I1 (keeping I2 = 0)
b. I2/ V1 (keeping V2 = 0)
c. I1/ V2 (keeping V1 = 0)
d. V1/ I2 (keeping I1 = 0)
Answer  Explanation 

ANSWER: I1/ V2 (keeping V1 = 0)

Explanation:
No explanation is available for this question!
7)   Which among the following is regarded as short circuit forward transfer admittance?

a. y11
b. y12
c. y21
d. y22
Answer  Explanation 

ANSWER: y21

Explanation:
No explanation is available for this question!
8)   Which elements act as an independent variables in Y-parameters?

a. Current
b. Voltage
c. Both a and b
d. None of the above
Answer  Explanation 

ANSWER: Voltage

Explanation:
No explanation is available for this question!
9)   For the network given below, what would be the value of 'z22', if the estimated z-parameters are 'z11' = 30 and 'z12' = 'z21' = 10?

a. 10
b. 20
c. 30
d. 40
Answer  Explanation 

ANSWER: 40

Explanation:
No explanation is available for this question!
10)   What does the connectivity of energy source at the port of network known as?

a. Driving Point
b. Transfer Point
c. Both a and b
d. None of the above
Answer  Explanation 

ANSWER: Driving Point

Explanation:
No explanation is available for this question!

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