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Home Electronics and Communication Engineering Networks Analysis and Synthesis Comments

  • Question
  • RMS value of i(t) = 10[1 + sin (- t)] is


  • Options
  • A. 10
  • B. 10/2
  • C. l50
  • D. 102

  • Correct Answer
  • l50 

    Explanation
    RMS value of i(t) = 10[1 + sin (- t)] is 10 10/2 l50 102 ..

    Networks Analysis and Synthesis problems


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    • 1. A two branch parallel circuit has a 20 ? resistance and 1 H inductance in one branch and a 100 ?F capacitor in the second branch. It is fed from 100 V ac supply, at resonance, the input impedance of the circuit is

    • Options
    • A. 500 ?
    • B. 50 ?
    • C. 20 ?
    • D. 5 ?
    • Discuss
    • 2. In an R-C series circuit excited by a voltage E, the charge across capacitor at t = 0+ is

    • Options
    • A. 0
    • B. CE
    • C. CE (1 - e-t/RC)
    • D. none of the above
    • Discuss
    • 3. In the figure shown, A1, A2, A3 are identical Ammeters. If A1 and A3 read 5 and 13 A respectively, reading of A2 will be

    • Options
    • A. 8
    • B. 13 A
    • C. 18
    • D. 12 A
    • Discuss
    • 4. The current wave shape shown in figure (1) is applied to a circuit element. The voltage across the element is shown in figure (2). The element is

    • Options
    • A. R
    • B. L
    • C. C
    • D. Semiconductor
    • Discuss
    • 5. The electrical energy required to heat a bucket of water to a certain temperature is 2 kWh. If heat losses, are 25%, the energy input is

    • Options
    • A. 2.67 kWh
    • B. 3 kWh
    • C. 2.5 kWh
    • D. 3.5 kWh
    • Discuss
    • 6. An infinite ladder is constructed with 1 ? and 2 ? resistors shown below.

    • Options
    • A. 8.18 A
    • B. 0 A
    • C. 9 A
    • D. can't determined
    • Discuss
    • 7. A 0.5 ?F capacitor is connected across a 10 V battery. After a long time, the circuit current and voltage across capacitor will be

    • Options
    • A. 0.5 A and 0 V
    • B. 0 A and 10 V
    • C. 20 A and 5 V
    • D. 0.05 A and 5 V
    • Discuss
    • 8. The impedance matrices of two, two-port network are given by and . If these two networks are connected in series, the impedance matrix of the resulting two-port network will be

    • Options
    • A.
    • B.
    • C.
    • D. indeterminate
    • Discuss
    • 9. , i(t) =

    • Options
    • A. 3e-4t - e-5t
    • B. 3e-4t - 2e-3t
    • C. 2e-4t - 5e-2t
    • D. 3e-4t - e-t
    • Discuss
    • 10. The circuit in figure will act as ideal current source with respect to terminals A and B when frequency is

    • Options
    • A. 0
    • B. 1 rad/sec
    • C. 4 rad/sec
    • D. 16 rad/sec
    • Discuss


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