NZART Amateur Examination                     page 3          NZARTX07 Security code 249733

  1. Three 10,000 ohm resistors are connected in series across a 90 volt supply. The voltage drop across one of the resistors is:
    1. 30 volt
    2. 60 volt
    3. 90 volt
    4. 15.8 volt

  2. The total resistance of four 68 ohm resistors wired in parallel is:
    1. 12 ohm
    2. 17 ohm
    3. 34 ohm
    4. 272 ohm

  3. Two 120 ohm resistors are arranged in parallel to replace a faulty resistor. The faulty resistor had an original value of:
    1. 15 ohm
    2. 30 ohm
    3. 60 ohm
    4. 120 ohm

  4. When two 1000 ohm 5 watt resistors are connected in parallel, they can dissipate a maximum total power of:
    1. 40 watt
    2. 20 watt
    3. 10 watt
    4. 5 watt

  5. The power dissipation of a resistor carrying a current of 10 mA with 10 volt across it is:
    1. 0.01 watt
    2. 0.1 watt
    3. 1 watt
    4. 10 watt

  6. A sine-wave alternating current of 10 ampere peak has an rms value of:
    1. 5 amp
    2. 7.07 amp
    3. 14.14 amp
    4. 20 amp

  7. Three 15 picofarad capacitors are wired in parallel. The value of the combination is:
    1. 45 picofarad
    2. 18 picofarad
    3. 12 picofarad
    4. 5 picofarad
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