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ECE :: Network Analysis and Synthesis

  1. A practical Parallel resonant circuit has a coil in Parallel with a 0.14 μf capacitor. The coil has an inductance of 1 mH and a resistance of 10 ohms. The Q of the circuit is

  2. A.
    1000
    B.
    100
    C.
    10
    D.
    1

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  3. An AC circuit has two branches in parallel. The current in one branch is 5 A. Then the current source

  4. A.
    must be less than 5 A
    B.
    must be more than 5 A
    C.
    may be equal or more or less than 5 A
    D.
    5 A

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  5. The electrolyte in a dry cell is completely dry.

  6. A.
    True
    B.
    False

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  7. A series RLC circuit has a resonant frequency of 2000 Hz. The maximum voltage across C is likely to occur at a frequency of about

  8. A.
    1000 Hz
    B.
    4000 Hz
    C.
    2025 Hz
    D.
    1975 Hz

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  9. Assertion (A): Thevenin's theorem and Norton's theorem are dual of each other.

    Reason (R): Voltage source can be converted into current source and vice versa.

  10. 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

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  11. In the network shown in figure, the voltage drops across R2 and R3 are 10 V and 16 V with polarities as shown. The current in R1

  12. A.
    is 9 A and directed towards node 0
    B.
    is 9 A and directed away from node 0
    C.
    is 9 A but directed of current cannot be found
    D.
    is impossible to be found

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  13. A coil has a resistance of 2 Ω and inductance of 0.1 mH. The applied voltages is suddenly increased from 10 V to 20 V. After steady state condition have reached, the current is

  14. A.
    2 A
    B.
    more than 2 A but less than 4 A
    C.
    4 A
    D.
    more than 4 A

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