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CSE :: Electronic Principles

  1. Which one of the following kinds of materials has the highest permeability?

  2. A.
    A diamagnetic material
    B.
    A ferromagnetic material
    C.
    A paramagnetic material
    D.
    All of the above
    E.
    None of the above

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  3. Inductive reactance is measured in units of:

  4. A.
    volts per second
    B.
    amperes per second
    C.
    Ohm
    D.
    henrys
    E.
    None of the above

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  5. What is the difference between the kinds of charges for an electron and a proton?

  6. A.
    An electron has a positive charge and a proton has no charge
    B.
    An electron has a positive charge and a proton has a negative charge
    C.
    An electron has a negative charge and a proton has a positive charge
    D.
    An electron has a negative charge and a proton has no charge
    E.
    None of the above

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  7. An ideal voltage source has

  8. A.
    Zero internal resistance
    B.
    Infinite internal resistance
    C.
    A load dependent voltage
    D.
    A load-dependent current
    E.
    None of the above

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  9. A transistor has how many doped regions?

  10. A.
    1
    B.
    2
    C.
    3
    D.
    4
    E.
    None of the above

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  11. The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?

  12. A.
    0.93 W
    B.
    0.93 V
    C.
    1 A
    D.
    9.3 W
    E.
    None of the above

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  13. A loadstone is:

  14. A.
    a natural magnet
    B.
    a temporary magnet
    C.
    an artificial magnet
    D.
    a paramagnetic alloy
    E.
    None of the above

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  15. Which one of the following phrases most accurately describes a purely capacitive circuit?

  16. A.
    Resistances provide the only opposition to current flow
    B.
    Capacitive reactance provides the only opposition to current flow
    C.
    The ac voltage leads the current by 90 degree
    D.
    Combinations of resistance and capacitive reactance provide any opposition to current flow
    E.
    None of the above

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  17. The saturation point is approximately the same as

  18. A.
    cutoff point
    B.
    lower end of the load line
    C.
    upper end of the load line
    D.
    infinity
    E.
    None of the above

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  19. Which one of the following statements is true for the currents in a series RC circuit?

  20. A.
    The current always has the same amplitude and phase for every part of the circuit
    B.
    The total current is equal to the sum of the currents for the resistance and capacitance
    C.
    The total current is greater than the sum of the currents for the resistance and capacitance
    D.
    The total current is less than the sum of the currents for the resistance and capacitance
    E.
    None of the above

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