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  1. A resistance of 3.3 M is connected across a 500 V source. The resulting current is approximately

  2. A.
    15.1 µA
    B.
    151 µA
    C.
    66 mA
    D.
    660 mA

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  3. You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed?

  4. A.
    9 V
    B.
    900 mV
    C.
    0 V
    D.
    18 V

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  5. The current through a flashlight bulb is 40 mA and the total battery voltage is 4.5 V. The resistance of the bulb is approximately

  6. A.
    112
    B.
    11.2
    C.
    1.2
    D.
    18

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  7. If you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be?

  8. A.
    8 V
    B.
    320 V
    C.
    3.2 V
    D.
    32 V

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  9. If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is

  10. A.
    220 k
    B.
    22 k
    C.
    2.2 k
    D.
    220

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  11. How much resistance is needed to draw 17.6 mA from a 12 volt source?

  12. A.
    212
    B.
    6.8 k
    C.
    68
    D.
    680

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  13. How much current is produced by a voltage of 18 kV across a 15 k resistance?

  14. A.
    1.2 A
    B.
    12 A
    C.
    120 mA
    D.
    12 mA

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  15. A current of 200 µA through a 6.8 k resistor produces a voltage drop of

  16. A.
    34.4 V
    B.
    340 V
    C.
    13.6 V
    D.
    1.36 V

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  17. Four amperes of current are measured through a 24 resistor connected across a voltage source. How much voltage does the source produce?

  18. A.
    960 V
    B.
    9.6 V
    C.
    96 V
    D.
    8 V

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  19. Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor?

  20. A.
    4
    B.
    400
    C.
    4 k
    D.
    4.4

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