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CSE :: Electronic Principles

  1. What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W?

  2. A.
    77.7 ohm
    B.
    89.3 ohm
    C.
    88.8 ohm
    D.
    224 ohm
    E.
    None of the above

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  3. The nucleus of the copper atom contains how many protons?

  4. A.
    1
    B.
    4
    C.
    18
    D.
    29
    E.
    None of the above

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  5. Which one of the following statements is true for voltage in a series circuit?

  6. A.
    The total voltage is equal to the sum of the individual voltages in a series circuit
    B.
    The total voltage in a series circuit is equal to the average value of the individual voltages
    C.
    The total voltage of a series circuit is equal to the total current divided by the total resistance
    D.
    The total voltage in a series circuit is always less than the value of the smallest voltage
    E.
    None of the above

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  7. A basic capacitor is composed of:

  8. A.
    two conductors separated by a dielectric
    B.
    two dielectrics separated by a conductor
    C.
    two coils separated by a dielectric
    D.
    two coils separated by a conductor
    E.
    None of the above

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  9. Which one of the following devices is most often used for measuring electrical potential difference?

  10. A.
    Voltmeter
    B.
    Ohmmeter
    C.
    Ammeter
    D.
    Wattmeter
    E.
    None of the above

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  11. Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance?

  12. A.
    P = I2R
    B.
    P = IE
    C.
    P = E2/R
    D.
    I = P/E
    E.
    None of the above

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  13. The equivalent of 1 megohms is:

  14. A.
    1 k ohm
    B.
    100,000 ohm
    C.
    one-millionth of an ohm
    D.
    one million ohms
    E.
    None of the above

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  15. Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it?

  16. A.
    E = PR
    B.
    E = I2R
    C.
    I = E/R
    D.
    I = ER
    E.
    None of the above

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  17. Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff?

  18. A.
    20 k Ohm or more
    B.
    200 k Ohm or less
    C.
    200 k Ohm or more
    D.
    20 km or less
    E.
    None of the above

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  19. If the current gain is 200 and the collector current is 100 mA, the base current is

  20. A.
    2 mA
    B.
    0.5 mA
    C.
    2 A
    D.
    200 A
    E.
    None of the above

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