Relation between Hybrid Parameters with Short & Open Circuit Impedance Parameters MCQ’s

Electronics & Communication Engineering Network Theory

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Relation between Hybrid Parameters with Short & Open Circuit Impedance Parameters”.

1. A constant k high pass p section has a characteristic impedance of 300 Ω at f = ∞. At f = fc, the characteristic impedance will be?
a) 0
b) ∞
c) 300 Ω
d) More than 300 Ω

2. In the circuit given below, the current through R is 2 sin 8t. The value of R is ___________

network-theory-written-test-questions-answers-q3

a) (0.18 + j0.72)
b) (0.46 + j1.90)
c) – (0.18 + j1.90)
d) (0.23 – 0.35 j)

3. A periodic voltage v (t) = 1 + 4 sin ωt + 2 cos ωt is applied across a 1Ω resistance. The power dissipated is ____________
a) 1 W
b) 11 W
c) 21 W
d) 24.5 W

4. For a T-network if the Short circuit admittance parameters are given as y11, y21, y12, y22, then y21 in terms of Hybrid parameters can be expressed as ________
a) y21 = (−h21h12h11+h22)
b) y21 = h21h11
c) y21 = –h12h11
d) y21 = 1h11

5. For a T-network if the Open circuit impedance parameters are given as z11, z21, z12, z22, then z11 in terms of Hybrid parameters can be expressed as ________
a) z11 = (h11–h21h12h22)
b) z11 = – h21h22
c) z11 = h12h22
d) z11 = 1h22

6. For a T-network if the Open circuit impedance parameters are given as z11, z21, z12, z22, then z22 in terms of Hybrid parameters can be expressed as ________
a) z22 = (h11–h21h12h22)
b) z22 = – h21h22
c) z22 = h12h22
d) z22 = 1h22

7. For a T-network if the Open circuit impedance parameters are given as z11, z21, z12, z22, then z21 in terms of Hybrid parameters can be expressed as ________
a) z21 = (h11–h21h12h22)
b) z21 = – h21h22
c) z21 = h12h22
d) z21 = 1h22

8. For a T-network if the Open circuit impedance parameters are given as z11, z21, z12, z22, then z12 in terms of Hybrid parameters can be expressed as ________
a) z12 = (h11–h21h12h22)
b) z12 = – h21h22
c) z12 = h12h22
d) z12 = 1h22

9. Permeability is analogous to _____________
a) Conductivity
b) Resistivity
c) Retentivity
d) Coercivity

10. A triangular Pulse of 50 V peak is applied to a capacitor of 0.1 F. The change of the capacitor and its waveform shape is ___________
a) 10 rectangular
b) 5 rectangular
c) 5 triangular
d) 10 triangular

11. For a T-network if the Open circuit impedance parameters are given as z11, z21, z12, z22, then z11 in terms of Inverse Hybrid parameters can be expressed as ________
a) z12 = 1g11
b) z12 = – g12g11
c) z12 = – g21g11
d) z12 = (g22–g21g12g11)

12. A resistance and an inductance are connected in parallel and fed from 50 Hz ac mains. Each branch takes a current of 5 A. The current supplied by source is ____________
a) 10 A
b) 7.07 A
c) 5 A
d) 0 A

13. A 10 μF capacitor is charged from a 5 volt source through a resistance of 10 kΩ. The charging current offer 35 m sec. If the initial voltage on C is – 3 V is ___________
a) 0.56 mA
b) 5.6 mA
c) 6 mA
d) 5 μA

14. For a T-network if the Open circuit impedance parameters are given as z11, z21, z12, z22, then z12 in terms of Inverse Hybrid parameters can be expressed as ________
a) z12 = 1g11
b) z12 = – g12g11
c) z12 = – g21g11
d) z12 = (g22–g21g12g11)

15. For a T-network if the Open circuit impedance parameters are given as z11, z21, z12, z22, then z22 in terms of Inverse Hybrid parameters can be expressed as ________
a) z22 = 1g11
b) z22 = – g12g11
c) z22 = – g21g11
d) z22 = (g22–g21g12g11)

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