Home / ECE / Network Analysis and Synthesis :: Section 11

ECE :: Network Analysis and Synthesis

  1. In figure readings of the two voltmeters should be

  2. A.
    100 V on each meter
    B.
    200 V on each meter
    C.
    150 V on V1 and 50 V on V2
    D.
    50 V on V1 and 150 V on V2

  3. The internal impedance of a source is 3 + j 7 Ω. For maximum power transfer, load impedance should be

  4. A.
    3 + j 7 Ω
    B.
    3 - j 7 Ω
    C.
    7 + j 3 Ω
    D.
    7 - j 3 Ω

  5. In the circuit of figure, the current through battery E3 is

  6. A.
    4 A charging
    B.
    4 A discharging
    C.
    4 A charging or discharging depending on value of E3
    D.
    4 A charging or discharging depending on values of E1, E2, E3

  7. In the circuit of figure

  8. A.
    Va would always lag Vb
    B.
    Va would always lead Vb
    C.
    Va and Vb would always be in phase
    D.
    Va may lag or lead Vb

  9. Two capacitors of 16 μF each are connected in series. Another capacitor of 16 μF is connected in parallel with this combination. The total capacitance will be

  10. A.
    48 μF
    B.
    32 μF
    C.
    24 μF
    D.

  11. Assertion (A): Operator has a value 1 ∠ - 90° or 1 ∠ 90°.

    Reason (R): Operator 'a' has a value 1 ∠ 120°.

  12. A.
    Both A and R are true and R is correct explanation of A
    B.
    Both A and R are true and R is not the correct explanation of A
    C.
    A is true but R is false
    D.
    A is false but R is true

  13. The maximum current and voltage ratings for a 0.5 W, 10 kW resistor are

  14. A.
    7.07 mA and 70.7 V
    B.
    70.7 mA and 70.7 V
    C.
    0.707 mA and 70.7 V
    D.
    7.07 mA and 70.7 x 103 V

  15. Figure shows a pole zero plot of I(s). The likely current response in time domain is

  16. A.
    i (t) = e-1 - e-3t
    B.
    i (t) = e-1 - 2e-2t
    C.
    i (t) = e-1 - e-2t
    D.
    i (t) = e-1 - e-4t

  17. A system has transfer function The dc gain is

  18. A.
    1
    B.
    2
    C.
    5
    D.
    10

  19. In a series RLC circuit, the current at resonance is I0 the total energy stored in the circuit at resonance is

  20. A.
    LI02
    B.
    2 LI02
    C.
    2 LI02
    D.
    0.5 LI2